# Paravis installer — C++ port

Native Win32 port of `USBInstaller\usb-install.au3` with the same layout,
behaviour and data flow.

## Build

Requirements:

- Visual Studio 2022 with the Desktop C++ workload
- CMake 3.20 or newer

From this directory run:

```bat
build.cmd
```

The executable is produced at:

```
build\Release\ParavisInstaller.exe
```

The target is 32-bit (`Win32`) like the original AutoIt build, and the
application manifest requests administrator rights.

## What is implemented

- 376 × 183 custom-drawn window, header, custom disk dropdown, status line,
  progress bar, install/cancel button and hover/pressed states.
- USB disk enumeration by storage bus type, nominal size formatting and
  Windows-system-disk protection.
- Diskpart layout: FAT32 PARAVIS 16 GB, FAT VTOYEFI 32 MB, exFAT DATA
  (remaining space minus 3 MB).
- Offline disk is brought online before partitioning.
- Layout verification from the partition table and volume labels.
- DISM apply of images 1 → PARAVIS, 2 → VTOYEFI, 3 → DATA with progress
  parsing and cancellation of the DISM process tree.
- Pressing the cancel button during installation asks for confirmation first.
- VTOYEFI drive letter removal after a successful install.
- Success warning, launch of `Change_BootLoader.exe` from the PARAVIS
  partition, then immediate exit.
- If a `Change_BootLoader.exe` is present next to the installer, it is copied
  to the PARAVIS partition after unpacking and used instead of the copy from
  `Data.pf`.
- Service modes: `/selftest`, `/verify=N`, `/testdisk=N`, `/wim=path`.

## Notes

- `Data.pf` is searched next to the executable, exactly like the AutoIt
  version. `/wim=` remains a service/testing override.
- DISM command lines are built without the outer `cmd /c "..."` quote pair,
  so paths containing spaces work correctly.
- The debug log is disabled by default. Set the environment variable
  `PARAVIS_DEBUG_LOG=1` to write `%TEMP%\paravis_cpp_debug.log`.
- Message boxes use the native `MessageBoxW` dialog; text, buttons and
  behavior are the same as the AutoIt version.

## Repository layout

```
src/            C++ sources and resources
legacy-au3/     original AutoIt script
build.cmd       release build
```

## License

MIT. See [`LICENSE`](LICENSE).

This repository contains source code only. Installation archives
(`Data.pf`), Windows images (`*.wim`, `*.esd`) and third-party binaries are
not distributed here.