Windows installer 2.0 (C++ port)

.gitignore

@@ -0,0 +1,40 @@
+# Build output
+build/
+build_x64/
+build_x86/
+out/
+bin/
+obj/
+*.exe
+*.dll
+*.lib
+*.exp
+*.obj
+*.pdb
+*.ilk
+*.res
+*.tlog
+*.idb
+
+# Installation images and archives (never committed)
+Data.pf
+*.wim
+*.esd
+*.iso
+*.pf
+
+# CMake
+CMakeCache.txt
+CMakeFiles/
+cmake_install.cmake
+
+# Visual Studio
+.vs/
+*.vcxproj*
+*.sln
+*.user
+*.suo
+
+# Logs, temporary and debug files
+*.log
+*.tmp

CMakeLists.txt

@@ -0,0 +1,46 @@
+cmake_minimum_required(VERSION 3.20)
+
+project(WindowsSetupCpp LANGUAGES CXX)
+
+enable_language(RC)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+add_executable(WindowsSetup WIN32
+    src/main.cpp
+    src/util.cpp
+    app.rc
+)
+
+set_property(TARGET WindowsSetup PROPERTY MSVC_RUNTIME_LIBRARY
+    "MultiThreaded$<$<CONFIG:Debug>:Debug>")
+
+target_compile_definitions(WindowsSetup PRIVATE
+    UNICODE
+    _UNICODE
+    WIN32_LEAN_AND_MEAN
+    NOMINMAX
+)
+
+target_compile_options(WindowsSetup PRIVATE
+    /utf-8
+    /W4
+    /permissive-
+)
+
+target_link_libraries(WindowsSetup PRIVATE
+    user32
+    gdi32
+    gdiplus
+    ole32
+)
+
+target_link_options(WindowsSetup PRIVATE /MANIFEST:NO)
+
+if(CMAKE_SIZEOF_VOID_P EQUAL 8)
+    set_target_properties(WindowsSetup PROPERTIES OUTPUT_NAME "setup_x64")
+else()
+    set_target_properties(WindowsSetup PROPERTIES OUTPUT_NAME "setup_x86")
+endif()

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Paravis
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -0,0 +1,85 @@
+# Windows Setup by Paravis — C++ port
+
+Native Win32 port of `Windows_installer_NEW\setup.au3`.
+
+## Build
+
+Requirements: Visual Studio 2022 (Desktop C++) and CMake 3.20+.
+
+```bat
+build.cmd
+```
+
+Outputs:
+
+```
+build_x64\Release\setup_x64.exe
+build_x86\Release\setup_x86.exe
+```
+
+The executables use a static CRT, are GUI subsystem, and use the same
+`asInvoker` manifest / Common Controls 6 as the AutoIt builds.
+
+## Preview
+
+- `setup_x64.exe /preview` or an executable named `setup_preview*.exe`
+  starts preview mode: fixed 307×259 position, all buttons enabled, no
+  `src_*.exe` helper, preview wallpaper.
+- The ported `setup_preview.exe` in `..\Windows_installer_NEW` is the x64
+  build used this way.
+
+## Deployment
+
+On a PARAVIS flash the two Windows Setup WIMs are:
+
+- `\efi\Paravis\Boot\ws64.wim`, image 1, `\Windows\Setup.exe` — x64 build
+- `\efi\Paravis\Boot\ws86.wim`, image 1, `\Windows\Setup.exe` — x86 build
+
+`Winpeshl.ini` in both WIMs already launches `%SYSTEMROOT%\setup.exe`.
+The launcher starts the real setup from `X:\sources\setup.exe`.
+
+The window is layered with color key `0xABCDEF`. The Montserrat fonts are
+embedded as RCDATA; the 1024×768 wallpaper is embedded as a lossless PNG and
+decoded with GDI+ at startup. This keeps each executable around 1 MB.
+The UI is the same 376/410/360-wide layout as the AutoIt version, with native
+buttons. GDI+ and ole32 are standard components of the Windows Setup boot.wim
+(verified in the target image).
+
+## Behaviour
+
+- Searches all drives for `\WindowsESD\NOT.DEL` or
+  `\efi\Paravis\Windows\NOT.DEL`.
+- Warns and exits if both image folders are present.
+- Finds `\efi\Paravis\Boot\NOT.DEL` for `src_x64.exe` / `src_x86.exe`
+  and Total Commander.
+- Uses `%WINDIR%\SYSWOW64` to select the x64 UI; `firmware_type` selects
+  Legacy vs UEFI for the x86 UI.
+- Builds the same `X:\sources\setup.exe /installfrom:... /m:... [/unattend:...]`
+  command lines as AutoIt.
+- Disables Windows buttons when the corresponding ESD image is missing.
+- Reboot button exits the launcher (the WinPE startup script performs the
+  reboot).
+- Debug log: set `PARAVIS_DEBUG_LOG=1` to write
+  `%TEMP%\winsetup_cpp_debug.log`.
+
+## Repository layout
+
+```
+src/            C++ sources and resources
+assets/         fonts, wallpapers and UI images (incl. Montserrat OFL)
+legacy-au3/     original AutoIt scripts
+app.rc          resource script
+app.manifest    application manifest
+build.cmd       release build (x64 + x86)
+```
+
+## License
+
+MIT for the program code. See [`LICENSE`](LICENSE).
+
+Montserrat is licensed under the SIL Open Font License 1.1; see
+[`assets/OFL.txt`](assets/OFL.txt) and [`THIRD-PARTY.md`](THIRD-PARTY.md).
+
+This repository contains source code only. Windows installation images
+(`*.wim`, `*.esd`, `Data.pf`), Microsoft font derivatives and third-party
+binaries are not distributed here.

THIRD-PARTY.md

@@ -0,0 +1,35 @@
+# Third-party components
+
+## Montserrat
+
+Files:
+
+- `assets/Montserrat-Regular.ttf`
+- `assets/Montserrat-Bold.ttf`
+
+Copyright 2024 The Montserrat.Git Project Authors
+(https://github.com/JulietaUla/Montserrat.git)
+
+Licensed under the SIL Open Font License, Version 1.1.
+The full license text is in [`assets/OFL.txt`](assets/OFL.txt) and is also
+available at <https://openfontlicense.org>.
+
+The fonts are embedded into the built executables as `RCDATA` resources so
+that the installer does not depend on system fonts.
+
+## Images and icons
+
+`assets/*.png`, `assets/*.bmp`, `assets/*.jpg` and `sec.ico` are Paravis
+artwork used by the installer UI.
+
+## Not included
+
+This repository contains source code and build assets only. It does not
+contain, and must not be used to redistribute:
+
+- Microsoft installation images (`*.wim`, `*.esd`, `*.iso`), including the
+  `Data.pf` archive;
+- Microsoft font derivatives (`tahoma*.pf2`, `segoeui18.pf2`);
+- Total Commander or any other third-party binaries;
+- signing keys, certificates or signed binaries;
+- build output (`*.exe`, object files, logs).

app.manifest

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+  <dependency>
+    <dependentAssembly>
+      <assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls" version="6.0.0.0" processorArchitecture="*" publicKeyToken="6595b64144ccf1df" language="*"/>
+    </dependentAssembly>
+  </dependency>
+  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
+    <security>
+      <requestedPrivileges>
+        <requestedExecutionLevel level="asInvoker" uiAccess="false"/>
+      </requestedPrivileges>
+    </security>
+  </trustInfo>
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"/>
+      <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
+      <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
+      <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/>
+      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>
+    </application>
+  </compatibility>
+</assembly>

app.rc

@@ -0,0 +1,9 @@
+#include <windows.h>
+
+1 ICON "sec.ico"
+1 24 "app.manifest"
+
+101 RCDATA "assets\\Montserrat-Regular.ttf"
+102 RCDATA "assets\\Montserrat-Bold.ttf"
+
+201 RCDATA "assets\\wallpaper-install.png"

assets/OFL.txt

@@ -0,0 +1,93 @@
+Copyright 2024 The Montserrat.Git Project Authors (https://github.com/JulietaUla/Montserrat.git)
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+https://openfontlicense.org
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded, 
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.

build.cmd

@@ -0,0 +1,18 @@
+@echo off
+setlocal
+cd /d "%~dp0"
+
+cmake -S . -B build_x64 -G "Visual Studio 17 2022" -A x64
+if errorlevel 1 exit /b 1
+cmake --build build_x64 --config Release
+if errorlevel 1 exit /b 1
+
+cmake -S . -B build_x86 -G "Visual Studio 17 2022" -A Win32
+if errorlevel 1 exit /b 1
+cmake --build build_x86 --config Release
+if errorlevel 1 exit /b 1
+
+echo.
+echo Built:
+echo   %~dp0build_x64\Release\setup_x64.exe
+echo   %~dp0build_x86\Release\setup_x86.exe

legacy-au3/README-legacy.md

@@ -0,0 +1,35 @@
+# Windows installer (legacy AutoIt)
+
+Исходный текст оригинальной версии на AutoIt (`setup.au3`,
+`setup-preview.au3`). Поддерживаемая версия — C++-порт в корне репозитория
+(`src/`, `assets/`, `CMakeLists.txt`).
+
+## Сборка C++ версии
+
+Из корня репозитория:
+
+```
+build.cmd
+```
+
+Получаются `build_x64\Release\setup_x64.exe` и
+`build_x86\Release\setup_x86.exe`. `setup_preview.exe` — x64-сборка в режиме
+предпросмотра (режим определяется по имени файла или ключу `/preview`).
+
+## Размещение на флешке PARAVIS
+
+- `\efi\Paravis\Boot\ws64.wim` — образ 1, `\Windows\Setup.exe` (x64)
+- `\efi\Paravis\Boot\ws86.wim` — образ 1, `\Windows\Setup.exe` (x86)
+
+`Winpeshl.ini` в этих WIM указывает на `%SYSTEMROOT%\setup.exe`.
+
+Образы установки могут размещаться на любом диске, но с сохранением путей.
+Если путей больше одного, будет ошибка.
+
+> Первый путь — `../efi/Paravis/Windows`
+> Второй путь — `../WindowsESD`
+
+Также нужно создать файл `NOT.DEL` (можно пустой) в двух местах:
+
+1. по пути, где лежат образы ESD;
+2. по пути `../efi/Paravis/Boot/`.

legacy-au3/setup-preview.au3

@@ -0,0 +1,240 @@
+#NoTrayIcon
+#include <Array.au3>
+#include <File.au3>
+#include <GUIConstantsEx.au3>
+#include <WindowsConstants.au3>
+#include <WinAPI.au3>
+#include <AutoItConstants.au3>
+
+Global $aArray = DriveGetDrive($DT_ALL), $sDisk, $iBtn11, $iBtn10, $iBtn7, $PathEr, $sDiskS, $UN11, $UN10x64, $UN10x86, $UN7x64, $UN7x86
+Global $bFontOk = False, $font = "Segoe UI"
+
+_LoadFonts()
+$font = _Font()
+
+For $i = 1 To $aArray[0]
+    $aFileList = _FileListToArrayRec($aArray[$i] & "\WindowsESD", "NOT.DEL", $FLTAR_FILES, $FLTAR_RECUR, $FLTAR_NOSORT, $FLTAR_FULLPATH)
+    If Not @error Then
+        $sDisk = $aArray[$i] & "\WindowsESD\"
+        $PathEr = 1
+        ExitLoop
+    EndIf
+Next
+For $i = 1 To $aArray[0]
+    $aFileList = _FileListToArrayRec($aArray[$i] & "\efi\Paravis\Windows", "NOT.DEL", $FLTAR_FILES, $FLTAR_RECUR, $FLTAR_NOSORT, $FLTAR_FULLPATH)
+    If Not @error Then
+        $sDisk = $aArray[$i] & "\efi\Paravis\Windows\"
+        $PathEr += 1
+        ExitLoop
+    EndIf
+Next
+If $PathEr > 1 Then
+    MsgBox(48, 'Предупреждение!', 'В системе больше одной папки с образами. Проверьте и удалите лишние (читаем ReadMe.txt). Система будет перезагружена.')
+    Exit
+EndIf
+For $i = 1 To $aArray[0]
+    $aFileList = _FileListToArrayRec($aArray[$i] & "\efi\Paravis\Boot", "NOT.DEL", $FLTAR_FILES, $FLTAR_RECUR, $FLTAR_NOSORT, $FLTAR_FULLPATH)
+    If Not @error Then
+        $sDiskS = $aArray[$i] & "\efi\Paravis\Boot"
+        ExitLoop
+    EndIf
+Next
+
+$ESD11 = $sDisk & "install_11.esd"
+$ESD10x64 = $sDisk & "install_10_x64.esd"
+$ESD10x86 = $sDisk & "install_10_x86.esd"
+$ESD7x64 = $sDisk & "install_7_x64.esd"
+$ESD7x86 = $sDisk & "install_7_x86.esd"
+If FileExists($sDisk & "autounattend\unattend11.xml") Then
+    $UN11 = " /unattend:" & $sDisk & "autounattend\unattend11.xml"
+Else
+    $UN11 = ''
+EndIf
+If FileExists($sDisk & "autounattend\unattend10x64.xml") Then
+    $UN10x64 = " /unattend:" & $sDisk & "autounattend\unattend10x64.xml"
+Else
+    $UN10x64 = ''
+EndIf
+If FileExists($sDisk & "autounattend\unattend10x86.xml") Then
+    $UN10x86 = " /unattend:" & $sDisk & "autounattend\unattend10x86.xml"
+Else
+    $UN10x86 = ''
+EndIf
+If FileExists($sDisk & "autounattend\unattend7x64.xml") Then
+    $UN7x64 = " /unattend:" & $sDisk & "autounattend\unattend7x64.xml"
+Else
+    $UN7x64 = ''
+EndIf
+If FileExists($sDisk & "autounattend\unattend7x86.xml") Then
+    $UN7x86 = " /unattend:" & $sDisk & "autounattend\unattend7x86.xml"
+Else
+    $UN7x86 = ''
+EndIf
+$OEM11 = " /m:" & $sDisk & "$OEM11$"
+$OEM10x64 = " /m:" & $sDisk & "$OEM10x64$"
+$OEM10x86 = " /m:" & $sDisk & "$OEM10x86$"
+$OEM7x64 = " /m:" & $sDisk & "$OEM7x64$"
+$OEM7x86 = " /m:" & $sDisk & "$OEM7x86$"
+$setup = "X:\sources\setup.exe /installfrom:"
+If FileExists(@WindowsDir & "\SYSWOW64") Then
+    ; preview skip
+    _x64()
+Else
+    ; preview skip
+    _x86()
+EndIf
+
+Func _LoadFonts()
+    Local $reg = @TempDir & "\Montserrat-Regular.ttf"
+    Local $bold = @TempDir & "\Montserrat-Bold.ttf"
+    FileInstall("assets\Montserrat-Regular.ttf", $reg, 1)
+    FileInstall("assets\Montserrat-Bold.ttf", $bold, 1)
+    Local $r1 = DllCall("gdi32.dll", "int", "AddFontResourceExW", "wstr", $reg, "dword", 0x10, "ptr", 0)
+    Local $r2 = DllCall("gdi32.dll", "int", "AddFontResourceExW", "wstr", $bold, "dword", 0x10, "ptr", 0)
+    If IsArray($r1) And IsArray($r2) Then
+        If $r1[0] > 0 Or $r2[0] > 0 Then $bFontOk = True
+    EndIf
+EndFunc
+
+Func _Font()
+    If $bFontOk Then Return "Montserrat"
+    Return "Segoe UI"
+EndFunc
+
+Func _x86()
+    $detect_efi = EnvGet("firmware_type")
+    If $detect_efi = "Legacy" Then
+        $hGUI = GUICreate("Windows Setup by Paravis", 410, 250, 307, 259, $WS_POPUP, $WS_EX_LAYERED)
+        GUISetBkColor(0xABCDEF)
+        GUICtrlSetState(-1, $GUI_DISABLE)
+        GUISetState()
+        _WinAPI_SetLayeredWindowAttributes($hGUI, 0xABCDEF, 255)
+        $iBtn10 = GUICtrlCreateButton("Установить Windows 10", 5, 5, 350, 40)
+        GUICtrlSetFont(-1, 13, 500, 0, $font)
+        $iBtn7 = GUICtrlCreateButton("Установить Windows 7", 5, 45, 350, 40)
+        GUICtrlSetFont(-1, 13, 500, 0, $font)
+        $iBtnTC = GUICtrlCreateButton("Total Commander", 5, 105, 350, 40)
+        GUICtrlSetFont(-1, 13, 500, 0, $font)
+        $iBtnR = GUICtrlCreateButton("Перезагрузка", 5, 145, 350, 40)
+        GUICtrlSetFont(-1, 13, 500, 0, $font)
+        GUISetState()
+        _checkesd86()
+        While 1
+            Switch GUIGetMsg()
+                Case $GUI_EVENT_CLOSE
+                Case $iBtn10
+                    GUISetState(@SW_HIDE)
+                    RunWait($setup & $ESD10x86 & $OEM10x86 & $UN10x86)
+                    GUISetState(@SW_SHOW)
+                Case $iBtn7
+                    GUISetState(@SW_HIDE)
+                    RunWait($setup & $ESD7x86 & $OEM7x86 & $UN7x86)
+                    GUISetState(@SW_SHOW)
+                Case $iBtnTC
+                    GUISetState(@SW_HIDE)
+                    RunWait($sDiskS & '\TotalCommander\TOTALCMD.EXE /I="%%COMMANDER_PATH%%\tcmdmain.ini"')
+                    GUISetState(@SW_SHOW)
+                Case $iBtnR
+                    Exit
+            EndSwitch
+        WEnd
+    Else
+        If Not FileExists($sDisk & "install_10_x86.esd") Then
+            MsgBox(48, 'Предупреждение!', 'Не найден образ Windows 10 x86. Система будет перезагружена.')
+            Exit
+        EndIf
+        $hGUI = GUICreate("Windows Setup by Paravis", 360, 190, -1, -1, $WS_POPUP, $WS_EX_LAYERED)
+        GUISetBkColor(0xABCDEF)
+        GUICtrlSetState(-1, $GUI_DISABLE)
+        GUISetState()
+        _WinAPI_SetLayeredWindowAttributes($hGUI, 0xABCDEF, 255)
+        $iBtn10 = GUICtrlCreateButton("Установить Windows 10", 5, 5, 350, 40)
+        GUICtrlSetFont(-1, 13, 500, 0, $font)
+        $iBtnTC = GUICtrlCreateButton("Total Commander", 5, 65, 350, 40)
+        GUICtrlSetFont(-1, 13, 500, 0, $font)
+        $iBtnR = GUICtrlCreateButton("Перезагрузка", 5, 105, 350, 40)
+        GUICtrlSetFont(-1, 13, 500, 0, $font)
+        GUISetState()
+        While 1
+            Switch GUIGetMsg()
+                Case $GUI_EVENT_CLOSE
+                Case $iBtn10
+                    GUISetState(@SW_HIDE)
+                    RunWait($setup & $ESD10x86 & $OEM10x86 & $UN10x86)
+                    GUISetState(@SW_SHOW)
+                Case $iBtnTC
+                    GUISetState(@SW_HIDE)
+                    RunWait($sDiskS & '\TotalCommander\TOTALCMD.EXE /I="%%COMMANDER_PATH%%\tcmdmain.ini"')
+                    GUISetState(@SW_SHOW)
+                Case $iBtnR
+                    Exit
+            EndSwitch
+        WEnd
+    EndIf
+EndFunc
+
+Func _x64()
+    $hGUI = GUICreate("Windows Setup by Paravis", 410, 250, 307, 259, $WS_POPUP, $WS_EX_LAYERED)
+    GUISetBkColor(0xABCDEF)
+    GUICtrlSetState(-1, $GUI_DISABLE)
+    GUISetState()
+    _WinAPI_SetLayeredWindowAttributes($hGUI, 0xABCDEF, 255)
+    $iBtn11 = GUICtrlCreateButton("Установить Windows 11", 5, 5, 350, 40)
+    GUICtrlSetFont(-1, 13, 500, 0, $font)
+    $iBtn10 = GUICtrlCreateButton("Установить Windows 10", 5, 45, 350, 40)
+    GUICtrlSetFont(-1, 13, 500, 0, $font)
+    $iBtn7 = GUICtrlCreateButton("Установить Windows 7", 5, 85, 350, 40)
+    GUICtrlSetFont(-1, 13, 500, 0, $font)
+    $iBtnTC = GUICtrlCreateButton("Total Commander", 5, 145, 350, 40)
+    GUICtrlSetFont(-1, 13, 500, 0, $font)
+    $iBtnR = GUICtrlCreateButton("Перезагрузка", 5, 185, 350, 40)
+    GUICtrlSetFont(-1, 13, 500, 0, $font)
+    GUISetState()
+    _checkesd64()
+    While 1
+        Switch GUIGetMsg()
+            Case $GUI_EVENT_CLOSE
+            Case $iBtn11
+                GUISetState(@SW_HIDE)
+                RunWait($setup & $ESD11 & $OEM11 & $UN11)
+                GUISetState(@SW_SHOW)
+            Case $iBtn10
+                GUISetState(@SW_HIDE)
+                RunWait($setup & $ESD10x64 & $OEM10x64 & $UN10x64)
+                GUISetState(@SW_SHOW)
+            Case $iBtn7
+                GUISetState(@SW_HIDE)
+                RunWait($setup & $ESD7x64 & $OEM7x64 & $UN7x64)
+                GUISetState(@SW_SHOW)
+            Case $iBtnTC
+                GUISetState(@SW_HIDE)
+                RunWait($sDiskS & '\TotalCommander\TOTALCMD64.EXE /I="%%COMMANDER_PATH%%\tcmdmain.ini"')
+                GUISetState(@SW_SHOW)
+            Case $iBtnR
+                Exit
+        EndSwitch
+    WEnd
+EndFunc
+
+Func _checkesd64()
+    Return
+    If Not FileExists($sDisk & "install_11.esd") Then
+        GUICtrlSetState($iBtn11, $GUI_DISABLE)
+    EndIf
+    If Not FileExists($sDisk & "install_10_x64.esd") Then
+        GUICtrlSetState($iBtn10, $GUI_DISABLE)
+    EndIf
+    If Not FileExists($sDisk & "install_7_x64.esd") Then
+        GUICtrlSetState($iBtn7, $GUI_DISABLE)
+    EndIf
+EndFunc
+
+Func _checkesd86()
+    Return
+    If Not FileExists($sDisk & "install_10_x86.esd") Then
+        GUICtrlSetState($iBtn10, $GUI_DISABLE)
+    EndIf
+    If Not FileExists($sDisk & "install_7_x86.esd") Then
+        GUICtrlSetState($iBtn7, $GUI_DISABLE)
+    EndIf
+EndFunc

legacy-au3/setup.au3

@@ -0,0 +1,249 @@
+#NoTrayIcon
+#include <Array.au3>
+#include <File.au3>
+#include <GUIConstantsEx.au3>
+#include <WindowsConstants.au3>
+#include <WinAPI.au3>
+#include <AutoItConstants.au3>
+
+Global $aArray = DriveGetDrive($DT_ALL), $sDisk, $iBtn11, $iBtn10, $iBtn7, $PathEr, $sDiskS, $UN11, $UN10x64, $UN10x86, $UN7x64, $UN7x86
+Global $bFontOk = False, $font = "Segoe UI", $hBg
+
+_LoadFonts()
+$font = _Font()
+_ShowWallpaper()
+
+For $i = 1 To $aArray[0]
+    $aFileList = _FileListToArrayRec($aArray[$i] & "\WindowsESD", "NOT.DEL", $FLTAR_FILES, $FLTAR_RECUR, $FLTAR_NOSORT, $FLTAR_FULLPATH)
+    If Not @error Then
+        $sDisk = $aArray[$i] & "\WindowsESD\"
+        $PathEr = 1
+        ExitLoop
+    EndIf
+Next
+For $i = 1 To $aArray[0]
+    $aFileList = _FileListToArrayRec($aArray[$i] & "\efi\Paravis\Windows", "NOT.DEL", $FLTAR_FILES, $FLTAR_RECUR, $FLTAR_NOSORT, $FLTAR_FULLPATH)
+    If Not @error Then
+        $sDisk = $aArray[$i] & "\efi\Paravis\Windows\"
+        $PathEr += 1
+        ExitLoop
+    EndIf
+Next
+If $PathEr > 1 Then
+    MsgBox(48, 'Предупреждение!', 'В системе больше одной папки с образами. Проверьте и удалите лишние (читаем ReadMe.txt). Система будет перезагружена.')
+    Exit
+EndIf
+For $i = 1 To $aArray[0]
+    $aFileList = _FileListToArrayRec($aArray[$i] & "\efi\Paravis\Boot", "NOT.DEL", $FLTAR_FILES, $FLTAR_RECUR, $FLTAR_NOSORT, $FLTAR_FULLPATH)
+    If Not @error Then
+        $sDiskS = $aArray[$i] & "\efi\Paravis\Boot"
+        ExitLoop
+    EndIf
+Next
+
+$ESD11 = $sDisk & "install_11.esd"
+$ESD10x64 = $sDisk & "install_10_x64.esd"
+$ESD10x86 = $sDisk & "install_10_x86.esd"
+$ESD7x64 = $sDisk & "install_7_x64.esd"
+$ESD7x86 = $sDisk & "install_7_x86.esd"
+If FileExists($sDisk & "autounattend\unattend11.xml") Then
+    $UN11 = " /unattend:" & $sDisk & "autounattend\unattend11.xml"
+Else
+    $UN11 = ''
+EndIf
+If FileExists($sDisk & "autounattend\unattend10x64.xml") Then
+    $UN10x64 = " /unattend:" & $sDisk & "autounattend\unattend10x64.xml"
+Else
+    $UN10x64 = ''
+EndIf
+If FileExists($sDisk & "autounattend\unattend10x86.xml") Then
+    $UN10x86 = " /unattend:" & $sDisk & "autounattend\unattend10x86.xml"
+Else
+    $UN10x86 = ''
+EndIf
+If FileExists($sDisk & "autounattend\unattend7x64.xml") Then
+    $UN7x64 = " /unattend:" & $sDisk & "autounattend\unattend7x64.xml"
+Else
+    $UN7x64 = ''
+EndIf
+If FileExists($sDisk & "autounattend\unattend7x86.xml") Then
+    $UN7x86 = " /unattend:" & $sDisk & "autounattend\unattend7x86.xml"
+Else
+    $UN7x86 = ''
+EndIf
+$OEM11 = " /m:" & $sDisk & "$OEM11$"
+$OEM10x64 = " /m:" & $sDisk & "$OEM10x64$"
+$OEM10x86 = " /m:" & $sDisk & "$OEM10x86$"
+$OEM7x64 = " /m:" & $sDisk & "$OEM7x64$"
+$OEM7x86 = " /m:" & $sDisk & "$OEM7x86$"
+$setup = "X:\sources\setup.exe /installfrom:"
+If FileExists(@WindowsDir & "\SYSWOW64") Then
+    RunWait($sDiskS & "\src_x64.exe auto2")
+    _x64()
+Else
+    RunWait($sDiskS & "\src_x86.exe auto2")
+    _x86()
+EndIf
+
+Func _LoadFonts()
+    Local $reg = @TempDir & "\Montserrat-Regular.ttf"
+    Local $bold = @TempDir & "\Montserrat-Bold.ttf"
+    FileInstall("assets\Montserrat-Regular.ttf", $reg, 1)
+    FileInstall("assets\Montserrat-Bold.ttf", $bold, 1)
+    Local $r1 = DllCall("gdi32.dll", "int", "AddFontResourceExW", "wstr", $reg, "dword", 0x10, "ptr", 0)
+    Local $r2 = DllCall("gdi32.dll", "int", "AddFontResourceExW", "wstr", $bold, "dword", 0x10, "ptr", 0)
+    If IsArray($r1) And IsArray($r2) Then
+        If $r1[0] > 0 Or $r2[0] > 0 Then $bFontOk = True
+    EndIf
+EndFunc
+
+Func _Font()
+    If $bFontOk Then Return "Montserrat"
+    Return "Segoe UI"
+EndFunc
+
+Func _ShowWallpaper()
+    Local $bg = @TempDir & "\paravis_wallpaper.bmp"
+    FileInstall("assets\wallpaper-install.bmp", $bg, 1)
+    $hBg = GUICreate("", @DesktopWidth, @DesktopHeight, 0, 0, $WS_POPUP, $WS_EX_TOOLWINDOW)
+    GUICtrlCreatePic($bg, 0, 0, @DesktopWidth, @DesktopHeight)
+    GUISetState(@SW_SHOW, $hBg)
+EndFunc
+Func _x86()
+    $detect_efi = EnvGet("firmware_type")
+    If $detect_efi = "Legacy" Then
+        $hGUI = GUICreate("Windows Setup by Paravis", 410, 250, -1, -1, $WS_POPUP, $WS_EX_LAYERED)
+        GUISetBkColor(0xABCDEF)
+        GUICtrlSetState(-1, $GUI_DISABLE)
+        GUISetState()
+        _WinAPI_SetLayeredWindowAttributes($hGUI, 0xABCDEF, 255)
+    WinSetOnTop($hGUI, "", 1)
+        $iBtn10 = GUICtrlCreateButton("Установить Windows 10", 5, 5, 350, 40)
+        GUICtrlSetFont(-1, 13, 500, 0, $font)
+        $iBtn7 = GUICtrlCreateButton("Установить Windows 7", 5, 45, 350, 40)
+        GUICtrlSetFont(-1, 13, 500, 0, $font)
+        $iBtnTC = GUICtrlCreateButton("Total Commander", 5, 105, 350, 40)
+        GUICtrlSetFont(-1, 13, 500, 0, $font)
+        $iBtnR = GUICtrlCreateButton("Перезагрузка", 5, 145, 350, 40)
+        GUICtrlSetFont(-1, 13, 500, 0, $font)
+        GUISetState()
+        _checkesd86()
+        While 1
+            Switch GUIGetMsg()
+                Case $GUI_EVENT_CLOSE
+                Case $iBtn10
+                    GUISetState(@SW_HIDE)
+                    RunWait($setup & $ESD10x86 & $OEM10x86 & $UN10x86)
+                    GUISetState(@SW_SHOW)
+                Case $iBtn7
+                    GUISetState(@SW_HIDE)
+                    RunWait($setup & $ESD7x86 & $OEM7x86 & $UN7x86)
+                    GUISetState(@SW_SHOW)
+                Case $iBtnTC
+                    GUISetState(@SW_HIDE)
+                    RunWait($sDiskS & '\TotalCommander\TOTALCMD.EXE /I="%%COMMANDER_PATH%%\tcmdmain.ini"')
+                    GUISetState(@SW_SHOW)
+                Case $iBtnR
+                    Exit
+            EndSwitch
+        WEnd
+    Else
+        If Not FileExists($sDisk & "install_10_x86.esd") Then
+            MsgBox(48, 'Предупреждение!', 'Не найден образ Windows 10 x86. Система будет перезагружена.')
+            Exit
+        EndIf
+        $hGUI = GUICreate("Windows Setup by Paravis", 360, 190, -1, -1, $WS_POPUP, $WS_EX_LAYERED)
+        GUISetBkColor(0xABCDEF)
+        GUICtrlSetState(-1, $GUI_DISABLE)
+        GUISetState()
+        _WinAPI_SetLayeredWindowAttributes($hGUI, 0xABCDEF, 255)
+    WinSetOnTop($hGUI, "", 1)
+        $iBtn10 = GUICtrlCreateButton("Установить Windows 10", 5, 5, 350, 40)
+        GUICtrlSetFont(-1, 13, 500, 0, $font)
+        $iBtnTC = GUICtrlCreateButton("Total Commander", 5, 65, 350, 40)
+        GUICtrlSetFont(-1, 13, 500, 0, $font)
+        $iBtnR = GUICtrlCreateButton("Перезагрузка", 5, 105, 350, 40)
+        GUICtrlSetFont(-1, 13, 500, 0, $font)
+        GUISetState()
+        While 1
+            Switch GUIGetMsg()
+                Case $GUI_EVENT_CLOSE
+                Case $iBtn10
+                    GUISetState(@SW_HIDE)
+                    RunWait($setup & $ESD10x86 & $OEM10x86 & $UN10x86)
+                    GUISetState(@SW_SHOW)
+                Case $iBtnTC
+                    GUISetState(@SW_HIDE)
+                    RunWait($sDiskS & '\TotalCommander\TOTALCMD.EXE /I="%%COMMANDER_PATH%%\tcmdmain.ini"')
+                    GUISetState(@SW_SHOW)
+                Case $iBtnR
+                    Exit
+            EndSwitch
+        WEnd
+    EndIf
+EndFunc
+
+Func _x64()
+    $hGUI = GUICreate("Windows Setup by Paravis", 410, 250, -1, -1, $WS_POPUP, $WS_EX_LAYERED)
+    GUISetBkColor(0xABCDEF)
+    GUICtrlSetState(-1, $GUI_DISABLE)
+    GUISetState()
+    _WinAPI_SetLayeredWindowAttributes($hGUI, 0xABCDEF, 255)
+    WinSetOnTop($hGUI, "", 1)
+    $iBtn11 = GUICtrlCreateButton("Установить Windows 11", 5, 5, 350, 40)
+    GUICtrlSetFont(-1, 13, 500, 0, $font)
+    $iBtn10 = GUICtrlCreateButton("Установить Windows 10", 5, 45, 350, 40)
+    GUICtrlSetFont(-1, 13, 500, 0, $font)
+    $iBtn7 = GUICtrlCreateButton("Установить Windows 7", 5, 85, 350, 40)
+    GUICtrlSetFont(-1, 13, 500, 0, $font)
+    $iBtnTC = GUICtrlCreateButton("Total Commander", 5, 145, 350, 40)
+    GUICtrlSetFont(-1, 13, 500, 0, $font)
+    $iBtnR = GUICtrlCreateButton("Перезагрузка", 5, 185, 350, 40)
+    GUICtrlSetFont(-1, 13, 500, 0, $font)
+    GUISetState()
+    _checkesd64()
+    While 1
+        Switch GUIGetMsg()
+            Case $GUI_EVENT_CLOSE
+            Case $iBtn11
+                GUISetState(@SW_HIDE)
+                RunWait($setup & $ESD11 & $OEM11 & $UN11)
+                GUISetState(@SW_SHOW)
+            Case $iBtn10
+                GUISetState(@SW_HIDE)
+                RunWait($setup & $ESD10x64 & $OEM10x64 & $UN10x64)
+                GUISetState(@SW_SHOW)
+            Case $iBtn7
+                GUISetState(@SW_HIDE)
+                RunWait($setup & $ESD7x64 & $OEM7x64 & $UN7x64)
+                GUISetState(@SW_SHOW)
+            Case $iBtnTC
+                GUISetState(@SW_HIDE)
+                RunWait($sDiskS & '\TotalCommander\TOTALCMD64.EXE /I="%%COMMANDER_PATH%%\tcmdmain.ini"')
+                GUISetState(@SW_SHOW)
+            Case $iBtnR
+                Exit
+        EndSwitch
+    WEnd
+EndFunc
+
+Func _checkesd64()
+    If Not FileExists($sDisk & "install_11.esd") Then
+        GUICtrlSetState($iBtn11, $GUI_DISABLE)
+    EndIf
+    If Not FileExists($sDisk & "install_10_x64.esd") Then
+        GUICtrlSetState($iBtn10, $GUI_DISABLE)
+    EndIf
+    If Not FileExists($sDisk & "install_7_x64.esd") Then
+        GUICtrlSetState($iBtn7, $GUI_DISABLE)
+    EndIf
+EndFunc
+
+Func _checkesd86()
+    If Not FileExists($sDisk & "install_10_x86.esd") Then
+        GUICtrlSetState($iBtn10, $GUI_DISABLE)
+    EndIf
+    If Not FileExists($sDisk & "install_7_x86.esd") Then
+        GUICtrlSetState($iBtn7, $GUI_DISABLE)
+    EndIf
+EndFunc

src/main.cpp

@@ -0,0 +1,627 @@
+#include "util.h"
+
+#include <windowsx.h>
+#include <objbase.h>
+#include <gdiplus.h>
+
+#include <algorithm>
+#include <cstring>
+#include <cwchar>
+#include <string>
+#include <vector>
+
+namespace {
+
+const wchar_t* kMainClass = L"ParavisWindowsSetupMain";
+const wchar_t* kWallClass = L"ParavisWindowsSetupWallpaper";
+
+const COLORREF CLR_KEY = RGB(0xAB, 0xCD, 0xEF);
+const int IDI_APP = 1;
+const int IDR_FONT_REGULAR = 101;
+const int IDR_FONT_BOLD = 102;
+const int IDR_WALLPAPER = 201;
+
+HINSTANCE g_hInst = nullptr;
+HWND g_wallHwnd = nullptr;
+HWND g_mainHwnd = nullptr;
+HBITMAP g_wallBitmap = nullptr;
+int g_wallWidth = 0;
+int g_wallHeight = 0;
+HBRUSH g_keyBrush = nullptr;
+HFONT g_buttonFont = nullptr;
+std::wstring g_fontFace = L"Segoe UI";
+std::wstring g_imageRoot;
+std::wstring g_bootRoot;
+bool g_preview = false;
+bool g_is64 = true;
+bool g_x86Legacy = false;
+bool g_busy = false;
+bool g_gdiplusStarted = false;
+ULONG_PTR g_gdiplusToken = 0;
+
+enum class Action {
+    Win11,
+    Win10x64,
+    Win7x64,
+    Win10x86,
+    Win7x86,
+    TotalCmd64,
+    TotalCmd86,
+    Reboot
+};
+
+struct ButtonDef {
+    int id = 0;
+    std::wstring text;
+    int y = 0;
+    Action action = Action::Reboot;
+    bool enabled = true;
+};
+
+std::vector<ButtonDef> g_buttons;
+
+void FillRectColor(HDC dc, const RECT& rect, COLORREF color)
+{
+    HBRUSH brush = CreateSolidBrush(color);
+    FillRect(dc, &rect, brush);
+    DeleteObject(brush);
+}
+
+std::wstring Lower(std::wstring value)
+{
+    for (wchar_t& ch : value) {
+        ch = static_cast<wchar_t>(towlower(ch));
+    }
+    return value;
+}
+
+bool StartsWith(const std::wstring& value, const std::wstring& prefix)
+{
+    return value.size() >= prefix.size() &&
+           _wcsnicmp(value.c_str(), prefix.c_str(), prefix.size()) == 0;
+}
+
+bool HasPreviewArg()
+{
+    std::wstring name = Lower(GetExeFileName());
+    if (StartsWith(name, L"setup_preview")) {
+        return true;
+    }
+    std::wstring commandLine = Lower(GetCommandLineW());
+    return commandLine.find(L"/preview") != std::wstring::npos;
+}
+
+std::wstring FirmwareType()
+{
+    wchar_t buffer[64] = {};
+    DWORD length = GetEnvironmentVariableW(L"firmware_type", buffer,
+                                           static_cast<DWORD>(std::size(buffer)));
+    if (length == 0 || length >= std::size(buffer)) {
+        return std::wstring();
+    }
+    return std::wstring(buffer, length);
+}
+
+std::wstring LoadFonts()
+{
+    std::wstring temp = GetTempDir();
+    std::wstring regular = temp + L"Montserrat-Regular.ttf";
+    std::wstring bold = temp + L"Montserrat-Bold.ttf";
+
+    bool loaded = false;
+    if (ExtractResourceToFile(g_hInst, IDR_FONT_REGULAR, RT_RCDATA, regular)) {
+        if (AddFontResourceExW(regular.c_str(), FR_PRIVATE, nullptr) > 0) {
+            loaded = true;
+        }
+    }
+    if (ExtractResourceToFile(g_hInst, IDR_FONT_BOLD, RT_RCDATA, bold)) {
+        if (AddFontResourceExW(bold.c_str(), FR_PRIVATE, nullptr) > 0) {
+            loaded = true;
+        }
+    }
+
+    DebugLog(L"fonts loaded=%d regular=%s bold=%s", loaded ? 1 : 0,
+             regular.c_str(), bold.c_str());
+    return loaded ? L"Montserrat" : L"Segoe UI";
+}
+
+bool LoadWallpaper()
+{
+    HRSRC resource = FindResourceW(g_hInst, MAKEINTRESOURCEW(IDR_WALLPAPER),
+                                   RT_RCDATA);
+    if (!resource) {
+        DebugLog(L"wallpaper PNG resource not found");
+        return false;
+    }
+
+    DWORD size = SizeofResource(g_hInst, resource);
+    HGLOBAL loaded = LoadResource(g_hInst, resource);
+    const void* data = loaded ? LockResource(loaded) : nullptr;
+    if (!data || size == 0) {
+        DebugLog(L"wallpaper PNG resource load failed");
+        return false;
+    }
+
+    HGLOBAL memory = GlobalAlloc(GMEM_MOVEABLE, size);
+    if (!memory) {
+        return false;
+    }
+    void* destination = GlobalLock(memory);
+    if (!destination) {
+        GlobalFree(memory);
+        return false;
+    }
+    memcpy(destination, data, size);
+    GlobalUnlock(memory);
+
+    IStream* stream = nullptr;
+    if (FAILED(CreateStreamOnHGlobal(memory, TRUE, &stream))) {
+        GlobalFree(memory);
+        return false;
+    }
+
+    Gdiplus::Bitmap bitmap(stream, FALSE);
+    if (bitmap.GetLastStatus() == Gdiplus::Ok) {
+        HBITMAP handle = nullptr;
+        if (bitmap.GetHBITMAP(Gdiplus::Color(255, 255, 255), &handle) ==
+            Gdiplus::Ok && handle) {
+            g_wallBitmap = handle;
+            g_wallWidth = static_cast<int>(bitmap.GetWidth());
+            g_wallHeight = static_cast<int>(bitmap.GetHeight());
+        }
+    }
+    stream->Release();
+
+    DebugLog(L"wallpaper PNG %dx%d loaded=%d", g_wallWidth, g_wallHeight,
+             g_wallBitmap ? 1 : 0);
+    return g_wallBitmap != nullptr;
+}
+
+void PaintWallpaper(HWND hwnd)
+{
+    PAINTSTRUCT paint{};
+    HDC dc = BeginPaint(hwnd, &paint);
+    RECT client{};
+    GetClientRect(hwnd, &client);
+
+    if (g_wallBitmap) {
+        HDC memory = CreateCompatibleDC(dc);
+        HGDIOBJ old = SelectObject(memory, g_wallBitmap);
+        SetStretchBltMode(dc, COLORONCOLOR);
+        StretchBlt(dc, 0, 0, client.right, client.bottom,
+                   memory, 0, 0, g_wallWidth, g_wallHeight, SRCCOPY);
+        SelectObject(memory, old);
+        DeleteDC(memory);
+    } else {
+        FillRectColor(dc, client, RGB(0xF0, 0xF0, 0xF0));
+    }
+    EndPaint(hwnd, &paint);
+}
+
+LRESULT CALLBACK WallpaperProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
+{
+    switch (message) {
+    case WM_ERASEBKGND:
+        return 1;
+    case WM_PAINT:
+        PaintWallpaper(hwnd);
+        return 0;
+    case WM_CLOSE:
+        return 0;
+    }
+    return DefWindowProcW(hwnd, message, wParam, lParam);
+}
+
+bool ContainsMarkerRecursive(const std::wstring& folder, const wchar_t* marker,
+                             int depth)
+{
+    if (depth > 32 || !DirectoryExists(folder)) {
+        return false;
+    }
+
+    WIN32_FIND_DATAW data{};
+    HANDLE find = FindFirstFileW((folder + L"\\*").c_str(), &data);
+    if (find == INVALID_HANDLE_VALUE) {
+        return false;
+    }
+
+    bool found = false;
+    do {
+        if (wcscmp(data.cFileName, L".") == 0 ||
+            wcscmp(data.cFileName, L"..") == 0) {
+            continue;
+        }
+
+        if (data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
+            if ((data.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) == 0) {
+                std::wstring child = folder + L"\\" + data.cFileName;
+                if (ContainsMarkerRecursive(child, marker, depth + 1)) {
+                    found = true;
+                    break;
+                }
+            }
+        } else if (_wcsicmp(data.cFileName, marker) == 0) {
+            found = true;
+            break;
+        }
+    } while (FindNextFileW(find, &data));
+
+    FindClose(find);
+    return found;
+}
+
+void ShowWarning(const std::wstring& text)
+{
+    MessageBoxW(g_wallHwnd, text.c_str(), L"Предупреждение!",
+                MB_ICONWARNING | MB_OK);
+}
+
+bool SearchPaths()
+{
+    int pathCount = 0;
+
+    for (wchar_t letter = L'A'; letter <= L'Z'; ++letter) {
+        std::wstring root{ letter, L':', L'\\' };
+        if (GetDriveTypeW(root.c_str()) == DRIVE_NO_ROOT_DIR) {
+            continue;
+        }
+        if (ContainsMarkerRecursive(root + L"WindowsESD", L"NOT.DEL", 0)) {
+            g_imageRoot = root + L"WindowsESD\\";
+            ++pathCount;
+            break;
+        }
+    }
+
+    for (wchar_t letter = L'A'; letter <= L'Z'; ++letter) {
+        std::wstring root{ letter, L':', L'\\' };
+        if (GetDriveTypeW(root.c_str()) == DRIVE_NO_ROOT_DIR) {
+            continue;
+        }
+        if (ContainsMarkerRecursive(root + L"efi\\Paravis\\Windows", L"NOT.DEL", 0)) {
+            g_imageRoot = root + L"efi\\Paravis\\Windows\\";
+            ++pathCount;
+            break;
+        }
+    }
+
+    if (pathCount > 1) {
+        ShowWarning(L"В системе больше одной папки с образами. "
+                    L"Проверьте и удалите лишние (читаем ReadMe.txt). "
+                    L"Система будет перезагружена.");
+        return false;
+    }
+
+    for (wchar_t letter = L'A'; letter <= L'Z'; ++letter) {
+        std::wstring root{ letter, L':', L'\\' };
+        if (GetDriveTypeW(root.c_str()) == DRIVE_NO_ROOT_DIR) {
+            continue;
+        }
+        if (ContainsMarkerRecursive(root + L"efi\\Paravis\\Boot", L"NOT.DEL", 0)) {
+            g_bootRoot = root + L"efi\\Paravis\\Boot";
+            break;
+        }
+    }
+
+    DebugLog(L"imageRoot=%s bootRoot=%s paths=%d",
+             g_imageRoot.c_str(), g_bootRoot.c_str(), pathCount);
+    return true;
+}
+
+bool HasEsd(const wchar_t* name)
+{
+    return FileExists(g_imageRoot + name);
+}
+
+std::wstring UnattendArgument(const wchar_t* file)
+{
+    std::wstring path = g_imageRoot + L"autounattend\\" + file;
+    if (FileExists(path)) {
+        return L" /unattend:" + path;
+    }
+    return std::wstring();
+}
+
+std::wstring SetupCommand(const wchar_t* esd, const wchar_t* oem,
+                          const wchar_t* unattend)
+{
+    std::wstring command = L"X:\\sources\\setup.exe /installfrom:" +
+                           g_imageRoot + esd + L" /m:" + g_imageRoot + oem;
+    command += UnattendArgument(unattend);
+    return command;
+}
+
+std::wstring TotalCmdCommand()
+{
+    const wchar_t* exe = g_is64 ? L"TOTALCMD64.EXE" : L"TOTALCMD.EXE";
+    return g_bootRoot + L"\\TotalCommander\\" + exe +
+           L" /I=\"%%COMMANDER_PATH%%\\tcmdmain.ini\"";
+}
+
+void RunInstallerCommand(const std::wstring& command)
+{
+    DebugLog(L"run: %s", command.c_str());
+    g_busy = true;
+    ShowWindow(g_mainHwnd, SW_HIDE);
+    RunWait(command, false);
+    ShowWindow(g_mainHwnd, SW_SHOW);
+    SetWindowPos(g_mainHwnd, HWND_TOPMOST, 0, 0, 0, 0,
+                 SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE | SWP_SHOWWINDOW);
+    g_busy = false;
+}
+
+void HandleButton(int id)
+{
+    if (g_busy) {
+        return;
+    }
+
+    const ButtonDef* selected = nullptr;
+    for (const ButtonDef& button : g_buttons) {
+        if (button.id == id) {
+            selected = &button;
+            break;
+        }
+    }
+    if (!selected) {
+        return;
+    }
+
+    switch (selected->action) {
+    case Action::Win11:
+        RunInstallerCommand(SetupCommand(L"install_11.esd", L"$OEM11$",
+                                         L"unattend11.xml"));
+        break;
+    case Action::Win10x64:
+        RunInstallerCommand(SetupCommand(L"install_10_x64.esd", L"$OEM10x64$",
+                                         L"unattend10x64.xml"));
+        break;
+    case Action::Win7x64:
+        RunInstallerCommand(SetupCommand(L"install_7_x64.esd", L"$OEM7x64$",
+                                         L"unattend7x64.xml"));
+        break;
+    case Action::Win10x86:
+        RunInstallerCommand(SetupCommand(L"install_10_x86.esd", L"$OEM10x86$",
+                                         L"unattend10x86.xml"));
+        break;
+    case Action::Win7x86:
+        RunInstallerCommand(SetupCommand(L"install_7_x86.esd", L"$OEM7x86$",
+                                         L"unattend7x86.xml"));
+        break;
+    case Action::TotalCmd64:
+    case Action::TotalCmd86:
+        RunInstallerCommand(TotalCmdCommand());
+        break;
+    case Action::Reboot:
+        ExitProcess(0);
+        break;
+    }
+}
+
+void BuildButtonDefs()
+{
+    g_buttons.clear();
+    int id = 1001;
+
+    if (g_is64) {
+        g_buttons.push_back({ id++, L"Установить Windows 11", 5, Action::Win11,
+                              g_preview || HasEsd(L"install_11.esd") });
+        g_buttons.push_back({ id++, L"Установить Windows 10", 45, Action::Win10x64,
+                              g_preview || HasEsd(L"install_10_x64.esd") });
+        g_buttons.push_back({ id++, L"Установить Windows 7", 85, Action::Win7x64,
+                              g_preview || HasEsd(L"install_7_x64.esd") });
+        g_buttons.push_back({ id++, L"Total Commander", 145, Action::TotalCmd64, true });
+        g_buttons.push_back({ id++, L"Перезагрузка", 185, Action::Reboot, true });
+    } else if (g_x86Legacy) {
+        g_buttons.push_back({ id++, L"Установить Windows 10", 5, Action::Win10x86,
+                              g_preview || HasEsd(L"install_10_x86.esd") });
+        g_buttons.push_back({ id++, L"Установить Windows 7", 45, Action::Win7x86,
+                              g_preview || HasEsd(L"install_7_x86.esd") });
+        g_buttons.push_back({ id++, L"Total Commander", 105, Action::TotalCmd86, true });
+        g_buttons.push_back({ id++, L"Перезагрузка", 145, Action::Reboot, true });
+    } else {
+        g_buttons.push_back({ id++, L"Установить Windows 10", 5, Action::Win10x86, true });
+        g_buttons.push_back({ id++, L"Total Commander", 65, Action::TotalCmd86, true });
+        g_buttons.push_back({ id++, L"Перезагрузка", 105, Action::Reboot, true });
+    }
+}
+
+void CreateMainWindow()
+{
+    int width = (g_is64 || g_x86Legacy) ? 410 : 360;
+    int height = (g_is64 || g_x86Legacy) ? 250 : 190;
+    int screenWidth = GetSystemMetrics(SM_CXSCREEN);
+    int screenHeight = GetSystemMetrics(SM_CYSCREEN);
+    int x = (screenWidth - width) / 2;
+    int y = (screenHeight - height) / 2;
+
+    if (g_preview && width == 410) {
+        x = 307;
+        y = 259;
+    }
+
+    HDC screen = GetDC(nullptr);
+    int dpi = GetDeviceCaps(screen, LOGPIXELSY);
+    ReleaseDC(nullptr, screen);
+    if (dpi <= 0) {
+        dpi = 96;
+    }
+
+    int fontHeight = -(13 * dpi / 72);
+    g_buttonFont = CreateFontW(fontHeight, 0, 0, 0, 500, FALSE, FALSE, FALSE,
+                               DEFAULT_CHARSET, OUT_DEFAULT_PRECIS,
+                               CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY,
+                               DEFAULT_PITCH | FF_DONTCARE, g_fontFace.c_str());
+
+    g_mainHwnd = CreateWindowExW(
+        WS_EX_LAYERED, kMainClass, L"Windows Setup by Paravis",
+        WS_POPUP | WS_CLIPCHILDREN, x, y, width, height,
+        nullptr, nullptr, g_hInst, nullptr);
+    if (!g_mainHwnd) {
+        DebugLog(L"main window creation failed error=%lu", GetLastError());
+        return;
+    }
+
+    SetLayeredWindowAttributes(g_mainHwnd, CLR_KEY, 0, LWA_COLORKEY);
+
+    for (const ButtonDef& button : g_buttons) {
+        HWND control = CreateWindowExW(
+            0, L"BUTTON", button.text.c_str(),
+            WS_CHILD | WS_VISIBLE | WS_TABSTOP | BS_PUSHBUTTON,
+            5, button.y, 350, 40,
+            g_mainHwnd, reinterpret_cast<HMENU>(static_cast<INT_PTR>(button.id)),
+            g_hInst, nullptr);
+        if (!control) {
+            continue;
+        }
+        if (g_buttonFont) {
+            SendMessageW(control, WM_SETFONT,
+                         reinterpret_cast<WPARAM>(g_buttonFont), TRUE);
+        }
+        if (!button.enabled) {
+            EnableWindow(control, FALSE);
+        }
+    }
+
+    SetWindowPos(g_mainHwnd, HWND_TOPMOST, x, y, width, height, SWP_SHOWWINDOW);
+    UpdateWindow(g_mainHwnd);
+    SetForegroundWindow(g_mainHwnd);
+    DebugLog(L"main window %dx%d at %d,%d buttons=%zu", width, height, x, y,
+             g_buttons.size());
+}
+
+void CreateWallpaperWindow()
+{
+    int width = GetSystemMetrics(SM_CXSCREEN);
+    int height = GetSystemMetrics(SM_CYSCREEN);
+    DWORD exStyle = WS_EX_TOOLWINDOW;
+
+    if (g_preview) {
+        width = 1024;
+        height = 768;
+        exStyle |= WS_EX_TOPMOST;
+    }
+
+    g_wallHwnd = CreateWindowExW(
+        exStyle, kWallClass, L"", WS_POPUP,
+        0, 0, width, height, nullptr, nullptr, g_hInst, nullptr);
+    if (!g_wallHwnd) {
+        DebugLog(L"wallpaper window creation failed error=%lu", GetLastError());
+        return;
+    }
+
+    ShowWindow(g_wallHwnd, SW_SHOWNOACTIVATE);
+    UpdateWindow(g_wallHwnd);
+    DebugLog(L"wallpaper window %dx%d", width, height);
+}
+
+LRESULT CALLBACK MainProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
+{
+    switch (message) {
+    case WM_ERASEBKGND: {
+        HDC dc = reinterpret_cast<HDC>(wParam);
+        RECT rect{};
+        GetClientRect(hwnd, &rect);
+        FillRectColor(dc, rect, CLR_KEY);
+        return 1;
+    }
+    case WM_COMMAND:
+        if (HIWORD(wParam) == BN_CLICKED) {
+            HandleButton(LOWORD(wParam));
+        }
+        return 0;
+    case WM_CLOSE:
+        return 0;
+    case WM_DESTROY:
+        PostQuitMessage(0);
+        return 0;
+    }
+    return DefWindowProcW(hwnd, message, wParam, lParam);
+}
+
+} // namespace
+
+int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE, LPWSTR, int)
+{
+    g_hInst = hInstance;
+    g_preview = HasPreviewArg();
+
+    Gdiplus::GdiplusStartupInput gdiplusInput;
+    g_gdiplusStarted =
+        Gdiplus::GdiplusStartup(&g_gdiplusToken, &gdiplusInput, nullptr) ==
+        Gdiplus::Ok;
+
+    g_keyBrush = CreateSolidBrush(CLR_KEY);
+
+    WNDCLASSEXW wallpaperClass{};
+    wallpaperClass.cbSize = sizeof(wallpaperClass);
+    wallpaperClass.lpfnWndProc = WallpaperProc;
+    wallpaperClass.hInstance = hInstance;
+    wallpaperClass.hCursor = LoadCursorW(nullptr, IDC_ARROW);
+    wallpaperClass.lpszClassName = kWallClass;
+    wallpaperClass.hbrBackground = static_cast<HBRUSH>(GetStockObject(BLACK_BRUSH));
+    if (!RegisterClassExW(&wallpaperClass)) {
+        return 1;
+    }
+
+    WNDCLASSEXW mainClass{};
+    mainClass.cbSize = sizeof(mainClass);
+    mainClass.lpfnWndProc = MainProc;
+    mainClass.hInstance = hInstance;
+    mainClass.hCursor = LoadCursorW(nullptr, IDC_ARROW);
+    mainClass.hIcon = LoadIconW(hInstance, MAKEINTRESOURCEW(IDI_APP));
+    mainClass.hIconSm = LoadIconW(hInstance, MAKEINTRESOURCEW(IDI_APP));
+    mainClass.lpszClassName = kMainClass;
+    mainClass.hbrBackground = g_keyBrush;
+    if (!RegisterClassExW(&mainClass)) {
+        return 1;
+    }
+
+    g_fontFace = LoadFonts();
+    LoadWallpaper();
+    CreateWallpaperWindow();
+
+    if (!SearchPaths()) {
+        return 0;
+    }
+
+    g_is64 = DirectoryExists(GetWindowsDir() + L"\\SYSWOW64");
+    std::wstring firmware = FirmwareType();
+    g_x86Legacy = !g_is64 && _wcsicmp(firmware.c_str(), L"Legacy") == 0;
+    DebugLog(L"is64=%d firmware=%s legacy86=%d", g_is64 ? 1 : 0,
+             firmware.c_str(), g_x86Legacy ? 1 : 0);
+
+    if (!g_preview && !g_bootRoot.empty()) {
+        std::wstring source = g_bootRoot +
+            (g_is64 ? L"\\src_x64.exe" : L"\\src_x86.exe");
+        if (FileExists(source)) {
+            DebugLog(L"running source helper: %s auto2", source.c_str());
+            RunWait(source + L" auto2", false);
+        } else {
+            DebugLog(L"source helper not found: %s", source.c_str());
+        }
+    }
+
+    if (!g_is64 && !g_x86Legacy) {
+        if (!FileExists(g_imageRoot + L"install_10_x86.esd")) {
+            ShowWarning(L"Не найден образ Windows 10 x86. "
+                        L"Система будет перезагружена.");
+            return 0;
+        }
+    }
+
+    BuildButtonDefs();
+    CreateMainWindow();
+    if (!g_mainHwnd) {
+        return 1;
+    }
+
+    MSG message{};
+    while (GetMessageW(&message, nullptr, 0, 0) > 0) {
+        TranslateMessage(&message);
+        DispatchMessageW(&message);
+    }
+    if (g_gdiplusStarted) {
+        Gdiplus::GdiplusShutdown(g_gdiplusToken);
+    }
+    return static_cast<int>(message.wParam);
+}

src/util.cpp

@@ -0,0 +1,228 @@
+#include "util.h"
+
+#include <cstdarg>
+#include <cstdio>
+#include <iterator>
+#include <vector>
+
+std::wstring Format(const wchar_t* fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    va_list copy;
+    va_copy(copy, args);
+    int needed = _vscwprintf(fmt, copy);
+    va_end(copy);
+
+    if (needed < 0) {
+        va_end(args);
+        return std::wstring();
+    }
+
+    std::wstring result(static_cast<size_t>(needed), L'\0');
+    if (needed > 0) {
+        _vsnwprintf_s(result.data(), result.size() + 1, _TRUNCATE, fmt, args);
+    }
+    va_end(args);
+    return result;
+}
+
+std::wstring GetExeDir()
+{
+    wchar_t buffer[MAX_PATH * 4] = {};
+    DWORD length = GetModuleFileNameW(nullptr, buffer, static_cast<DWORD>(std::size(buffer)));
+    if (length == 0) {
+        return std::wstring();
+    }
+    std::wstring path(buffer, length);
+    size_t slash = path.find_last_of(L"\\/");
+    if (slash != std::wstring::npos) {
+        path.resize(slash);
+    }
+    return path;
+}
+
+std::wstring GetExeFileName()
+{
+    wchar_t buffer[MAX_PATH * 4] = {};
+    DWORD length = GetModuleFileNameW(nullptr, buffer, static_cast<DWORD>(std::size(buffer)));
+    if (length == 0) {
+        return std::wstring();
+    }
+    std::wstring path(buffer, length);
+    size_t slash = path.find_last_of(L"\\/");
+    if (slash != std::wstring::npos) {
+        path = path.substr(slash + 1);
+    }
+    return path;
+}
+
+std::wstring GetWindowsDir()
+{
+    wchar_t buffer[MAX_PATH] = {};
+    UINT length = GetWindowsDirectoryW(buffer, MAX_PATH);
+    if (length == 0) {
+        return L"C:\\Windows";
+    }
+    return std::wstring(buffer, length);
+}
+
+std::wstring GetTempDir()
+{
+    wchar_t buffer[MAX_PATH + 1] = {};
+    DWORD length = GetTempPathW(MAX_PATH, buffer);
+    if (length == 0 || length >= MAX_PATH) {
+        wchar_t windows[MAX_PATH] = {};
+        GetWindowsDirectoryW(windows, MAX_PATH);
+        return std::wstring(windows) + L"\\Temp\\";
+    }
+    std::wstring path(buffer, length);
+    if (path.empty() || path.back() != L'\\') {
+        path.push_back(L'\\');
+    }
+    return path;
+}
+
+bool FileExists(const std::wstring& path)
+{
+    DWORD attributes = GetFileAttributesW(path.c_str());
+    return attributes != INVALID_FILE_ATTRIBUTES &&
+           (attributes & FILE_ATTRIBUTE_DIRECTORY) == 0;
+}
+
+bool DirectoryExists(const std::wstring& path)
+{
+    DWORD attributes = GetFileAttributesW(path.c_str());
+    return attributes != INVALID_FILE_ATTRIBUTES &&
+           (attributes & FILE_ATTRIBUTE_DIRECTORY) != 0;
+}
+
+bool ExtractResourceToFile(HINSTANCE instance, int resourceId, const wchar_t* type,
+                           const std::wstring& path)
+{
+    HRSRC resource = FindResourceW(instance, MAKEINTRESOURCEW(resourceId), type);
+    if (!resource) {
+        return false;
+    }
+    DWORD size = SizeofResource(instance, resource);
+    HGLOBAL loaded = LoadResource(instance, resource);
+    if (!loaded) {
+        return false;
+    }
+    const void* data = LockResource(loaded);
+    if (!data || size == 0) {
+        return false;
+    }
+
+    HANDLE file = CreateFileW(path.c_str(), GENERIC_WRITE, 0, nullptr,
+                              CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr);
+    if (file == INVALID_HANDLE_VALUE) {
+        return false;
+    }
+    DWORD written = 0;
+    bool ok = WriteFile(file, data, size, &written, nullptr) != FALSE && written == size;
+    CloseHandle(file);
+    return ok;
+}
+
+void PumpMessages()
+{
+    MSG message{};
+    while (PeekMessageW(&message, nullptr, 0, 0, PM_REMOVE)) {
+        if (message.message == WM_QUIT) {
+            PostQuitMessage(static_cast<int>(message.wParam));
+            continue;
+        }
+        TranslateMessage(&message);
+        DispatchMessageW(&message);
+    }
+}
+
+int RunWait(const std::wstring& commandLine, bool hidden)
+{
+    STARTUPINFOW startup{};
+    startup.cb = sizeof(startup);
+    DWORD creationFlags = 0;
+    if (hidden) {
+        startup.dwFlags = STARTF_USESHOWWINDOW;
+        startup.wShowWindow = SW_HIDE;
+        creationFlags = CREATE_NO_WINDOW;
+    }
+
+    PROCESS_INFORMATION process{};
+    std::vector<wchar_t> buffer(commandLine.begin(), commandLine.end());
+    buffer.push_back(L'\0');
+
+    if (!CreateProcessW(nullptr, buffer.data(), nullptr, nullptr, FALSE,
+                        creationFlags, nullptr, nullptr, &startup, &process)) {
+        return -1;
+    }
+
+    CloseHandle(process.hThread);
+    for (;;) {
+        DWORD result = MsgWaitForMultipleObjects(1, &process.hProcess, FALSE,
+                                                 30, QS_ALLINPUT);
+        if (result == WAIT_OBJECT_0) {
+            break;
+        }
+        PumpMessages();
+    }
+
+    DWORD exitCode = 1;
+    GetExitCodeProcess(process.hProcess, &exitCode);
+    CloseHandle(process.hProcess);
+    return static_cast<int>(exitCode);
+}
+
+COLORREF ColorFromHex(DWORD rgb)
+{
+    return RGB((rgb >> 16) & 0xFF, (rgb >> 8) & 0xFF, rgb & 0xFF);
+}
+
+void DebugLog(const wchar_t* fmt, ...)
+{
+    wchar_t enabled[8] = {};
+    if (GetEnvironmentVariableW(L"PARAVIS_DEBUG_LOG", enabled,
+                                static_cast<DWORD>(std::size(enabled))) == 0) {
+        return;
+    }
+
+    va_list args;
+    va_start(args, fmt);
+    wchar_t message[4096] = {};
+    _vsnwprintf_s(message, std::size(message), _TRUNCATE, fmt, args);
+    va_end(args);
+
+    SYSTEMTIME st{};
+    GetLocalTime(&st);
+    std::wstring line = Format(L"%02d:%02d:%02d.%03d [%lu] %s\r\n",
+                               st.wHour, st.wMinute, st.wSecond, st.wMilliseconds,
+                               GetCurrentThreadId(), message);
+
+    wchar_t temp[MAX_PATH] = {};
+    DWORD length = GetTempPathW(MAX_PATH, temp);
+    std::wstring path;
+    if (length > 0) {
+        path.assign(temp, length);
+    }
+    path += L"winsetup_cpp_debug.log";
+
+    int needed = WideCharToMultiByte(CP_UTF8, 0, line.c_str(),
+                                     static_cast<int>(line.size()), nullptr, 0,
+                                     nullptr, nullptr);
+    if (needed > 0) {
+        std::string bytes(static_cast<size_t>(needed), '\0');
+        WideCharToMultiByte(CP_UTF8, 0, line.c_str(),
+                            static_cast<int>(line.size()), bytes.data(), needed,
+                            nullptr, nullptr);
+        HANDLE file = CreateFileW(path.c_str(), FILE_APPEND_DATA,
+                                  FILE_SHARE_READ | FILE_SHARE_WRITE, nullptr,
+                                  OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr);
+        if (file != INVALID_HANDLE_VALUE) {
+            DWORD written = 0;
+            WriteFile(file, bytes.data(), static_cast<DWORD>(bytes.size()),
+                      &written, nullptr);
+            CloseHandle(file);
+        }
+    }
+}

src/util.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include <windows.h>
+#include <string>
+
+std::wstring Format(const wchar_t* fmt, ...);
+std::wstring GetExeDir();
+std::wstring GetExeFileName();
+std::wstring GetWindowsDir();
+std::wstring GetTempDir();
+bool FileExists(const std::wstring& path);
+bool DirectoryExists(const std::wstring& path);
+bool ExtractResourceToFile(HINSTANCE instance, int resourceId, const wchar_t* type,
+                           const std::wstring& path);
+int RunWait(const std::wstring& commandLine, bool hidden = false);
+void PumpMessages();
+COLORREF ColorFromHex(DWORD rgb);
+void DebugLog(const wchar_t* fmt, ...);