Browse free open source System software and projects for Windows below. Use the toggles on the left to filter open source System software by OS, license, language, programming language, and project status.

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  • 1
    Network Bridging Utility

    Network Bridging Utility

    Windows Network Bridging Utility

    The aim of this small windows network bridging utility is to administrate network bridges by command line. Currently Microsoft Windows only supports modifying bridges by GUI. Builtin netsh has only spare support for network bridges and is restricted to setting compatibility mode for specific adapters. Todos: Windows 8/8.1 support
    Leader badge
    Downloads: 9 This Week
    Last Update:
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  • 2
    Tamed Windows Update

    Tamed Windows Update

    The Old New Client for Windows ® Updates

    Tamed Windows Update is a application for Microsoft Windows ® intended to replace the update client software shipped with the operating system and to provide better control over how and when Windows Updates are downloaded and installed. It especially targets the users of Windows ® 10 / 11 Pro and Enterprise editions who want to keep their system up-to-date but to their conditions.
    Downloads: 15 This Week
    Last Update:
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  • 3
    "Slow CPU" Emulator

    "Slow CPU" Emulator

    Slows down any given Windows process (written in C#)

    "Slow CPU" Emulator is useful for slowing down games, testing how applications deal with lag, and/or reducing the overall CPU usage of a specified process. Simply tell the emulator the update interval and speed percentage, and witness your application slowing down to the specified speed live! The code is written in C# for Windows and is extremely robust, flexible and stable, and has been tested very thoroughly. I apologise in advance for the code not being very readable, sometimes spaghetti code is more optimised code. ;) If you encounter any issues, do not hesitate to tell me. :) License: MS-PL Do whatever you want with the code. Credit would be nice, but definitely not required. I am not responsible for any undesired or unintended effects that may (most probably won't) come up as a result of using the application.
    Downloads: 3 This Week
    Last Update:
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  • 4
    This utility is meant to become an open source clone and eventually to surpass the functionality of WinObj. It shows objects and namespaces that are otherwise hard to explore.
    Downloads: 2 This Week
    Last Update:
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  • 5
    PC Controller
    With this app, you could control your PC Designer - c00lkiddv2016 Scripter - c00lkiddv2016, NullSkull and John O'Nell Update Log: 11/24/2016 - Launched Version 0.1
    Downloads: 1 This Week
    Last Update:
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  • 6

    [C#] Secure Shredder Console

    A console file shredder that supports many algorithms.

    There are many ways to delete a file, whether you want it to be secure or not, fast or not. Since nowadays, we use computers to store data (including confidential ones), we want to totally delete a file with no traces for any file recovery solution. The program supports Zero Data 1 Pass, British HMG IS5-Baseline 1 Pass, Russian GOST P50739-95 2 Passes, British HMG IS5-Enhanced 3 Passes, US DoD 5220.22-M / Canadian RCMP DSX 3 Passes, German VSITR 7 Passes, Bruce Schneier's 7 Passes, Canadian RCMP TSSIT OPS-II 7 Passes, and Peter Gutmann 35 Passes. The program is written in C# .NET. The source code is also available for download and you may contribute to the development here. If you want a clear explanation on how each of the algorithms work, please refer here: http://www.phoebekwok.com/publications/GJY_SecureDataShredder.pdf
    Downloads: 1 This Week
    Last Update:
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  • 7
    Dir2Encrypt
    Dir2Encrypt encrypt a folder with privat files and subfolders into a single password protected archive file. The archive file can be a zip file or a self extracting exe file. Microsoft Net Framwork 2 has to be installed.
    Downloads: 0 This Week
    Last Update:
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  • 8
    This program allows to upload files to a file server via command line, context menu or logon dialog. All logon settings can be stored inside a configuration file. Logon credentials such as username and password are stored encrypted.
    Downloads: 0 This Week
    Last Update:
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  • 9

    InvisibleShortcuts

    Create your own customized shortcuts to do anything!

    Welcome to use InvisibleShortcuts! InvisibleShortcuts is a invisible service which allow you to create your own customized shortcuts to launch applications, visit folders and websites, manipulate files, execute system command lines or do anything.
    Downloads: 0 This Week
    Last Update:
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  • 10
    NSIS Autorun is a graphical CD/DVD/USB autorun (autoplay) engine that launches installers made with NSIS. Non-rectangular windows, animation, and sound are supported. Can be used with Windows 95/NT4 - 7(x86/x64).
    Downloads: 0 This Week
    Last Update:
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  • 11
    This is an Open Source Operating System which is completely developing in C. It will not be supporting GUI. It is designed to be like a DOS challenging the statement that only GUI enabled OS are more user-friendly and have wider functionality.
    Downloads: 0 This Week
    Last Update:
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  • 12

    Weed Killer

    Aged File Removal

    Weed Killer is a .NET solution to prune aged files from folders, working equally well on a single workstation, or multiple data centers. It has an MDI form to build / edit / test / execute configurations, a console worker for delegated removal , and a class for direct use in an application. Feature include: - Enhanced multi-layer wildcard support for folder-trees. - Choice of regular expressions or traditional wildcards for file or folder patterns. - Ability to specify not only inclusion, but exclusion patterns as well. - Multiple configurations per file. - Simple MDI GUI for editing and testing. - Configuration extension registered as a file type for opening directly from Windows Explorer. - Multiple configuration file editing, with copy/paste support. - Server restrictions on a configuration file, to limit what systems may execute the file when automated. - Automatic assignment/removal of delete permissions for an NT credential on a targeted root folder. Written in C#
    Downloads: 0 This Week
    Last Update:
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  • 13
    backup utility
    backups files, folders using AES-256; win, own scheduler intergration, multiple storages (including ftp, shares). Sources: http://butil.codeplex.com/SourceControl/list/changesets
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    Downloads: 0 This Week
    Last Update:
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  • 14
    Little System Cleaner

    Little System Cleaner

    Little System Cleaner is an all in one system cleaner.

    Little System Cleaner is an all in one system cleaner for Windows computers. Little System Cleaner combines several tools created by Little Apps into one, these tools include a registry cleaner, registry optimizer, disk cleaner, privacy cleaner, duplicate finder, startup manager and uninstall manager. These tools allow you to make your Windows PC perform better and faster. * Faster System Speed * Free Up Disk Space * Protect Your Privacy * Remove Programs From Starting With The Computer * Uninstall Unnecessary Software * ... and much more!
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    Downloads: 4 This Week
    Last Update:
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