C win32api

Open-source C projects categorized as win32api

Top 8 C win32api Projects

  1. reactos

    A free Windows-compatible Operating System

    Project mention: Microsoft Needs Windows Lite | news.ycombinator.com | 2026-06-29

    There is already a "Windows Lite", and it's called ReactOS [0].

    Except, the last thing we need is for Microsoft to own / embrace-extend-exterminate this. It's best that it's kept as an independent project, enabling developers to target the Windows API if they feel like it, while ensuring that they only target the Wine-compatible parts of it, which then enables their software to also run seamlessly on other platforms at no extra effort, and without requiring either the users or the devs to have to lock themselves into this ungodly telemetry-spying-ads-AI-.NET mess that the article talks about.

    Microsoft, on the other hand, has zero to gain from making a Windows Lite variant themselves given their lifeline is exactly this telemetry-spying-ads-AI-.NET ecosystem; and they have zero to gain from absorbing ReactOS or similar projects, other than in order to eliminate them.

    [0] https://reactos.org/

  2. SaaSHub

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  3. Hacking-Windows

    A FREE Windows C development course where we will learn the Win32API and reverse engineer each step utilizing IDA Free in both an x86 and x64 environment.

  4. XScreenSaverWin

    XScreenSaver for Windows

  5. programming-windows-5th-edition

    Unofficial source code repo for Charles Petzold's Programming Windows 5th Edition.

  6. wim-backup

    Win32-based UI application for backup and restore of Windows-based system images (Windows partition) using Windows Imaging Format (WIM) in WinPE environment.

  7. mdt-cleanup-harddrive-winpe

    Win32-based UI application to erase the primary hard disk as part of a Lite Touch installation (WinPE / Microsoft Deployment Toolkit (MDT)).

  8. RWordPad

    Independent ReactOS WordPad

  9. RControlPanel

    Independent ReactOS Control Panel

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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Index

What are some of the best open-source win32api projects in C? This list will help you:

# Project Stars
1 reactos 17,931
2 Hacking-Windows 1,611
3 XScreenSaverWin 118
4 programming-windows-5th-edition 110
5 wim-backup 65
6 mdt-cleanup-harddrive-winpe 37
7 RWordPad 22
8 RControlPanel 9

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