Browse free open source System software and projects for Windows and Windows IoT 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

    Info-ZIP project

    Info-ZIP portable compression/archiver utilities

    Info-ZIP portable compression/archiver utilities (Zip, UnZip, WiZ, etc.)
    Leader badge
    Downloads: 132,414 This Week
    Last Update:
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  • 2
    libusb

    libusb

    A cross-platform library that gives apps easy access to USB devices

    Library to enable user space application programs to communicate with USB devices
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    Downloads: 4,352 This Week
    Last Update:
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  • 3
    Moved to https://atari800.github.io/
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    Downloads: 607 This Week
    Last Update:
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  • 4
    GPS Datalogger Device Control
    i-Blue 747 / i-Blue 757 / Qstarz BT-Q1000 / i.Trek Z1 / Konet BGL-32 / Holux M-241 / ... control SW (for Java Phones, PalmOS, WinCe (PPC), Java platforms, Windows, Linux, and MacOS). Compatible with most MTK GPS Chipset based loggers.
    Downloads: 30 This Week
    Last Update:
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    Gemini 3 and 200+ AI Models on One Platform

    Access Google's best plus Claude, Llama, and Gemma. Fine-tune and deploy from one console.

    Build generative AI apps with Vertex AI. Switch between models without switching platforms.
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  • 5
    ASAP - Another Slight Atari Player
    ASAP (Another Slight Atari Player) plays and converts 8-bit Atari music (*.sap, *.cmc, *.mpt, *.rmt, *.tmc, ...) on modern computers and mobile devices.
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    Downloads: 33 This Week
    Last Update:
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  • 6
    Universal BootLoader Tool helps you easily recover from a failed rom flash, and is known to turn an free update rom into a full rom. (e.g. from the free WM5 update rom available for hx4700 Pocket PCs on HP.com) Only tested with HP iPAQ Pocket PCs.
    Leader badge
    Downloads: 51 This Week
    Last Update:
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  • 7
    Cinemagoer

    Cinemagoer

    Python package to retrieve and manage data of the IMDb

    Cinemagoer is a Python package useful to retrieve and manage the data of the IMDb movie database about movies, people, characters and companies. Platform-independent, it can retrieve data from both the IMDb's web server and a local copy of the whole db.
    Downloads: 4 This Week
    Last Update:
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  • 8
    Herecast is an application that delivers location-based services using only an 802.11 network (no GPS required.) It can also be used as an Wi-Fi network scanner for Pocket PC 2003.
    Downloads: 10 This Week
    Last Update:
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  • 9
    SuperWaba is a Virtual Machine for handhelds. Runs in PalmOS, Windows CE, Win32, and is fully emulated under JDK/browser. Supports Exceptions, has a complete set of UI controls (Palm/WinCE), double and long, grayscale/color, sockets/serial/IR/Bluetooth
    Downloads: 9 This Week
    Last Update:
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  • 10
    Mouse Control is a remote administration application made in Visual Basic 6. It allows you to control the mouse, keyboard, shutdown computer, watch the remote screen, and more.
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    Downloads: 4 This Week
    Last Update:
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  • 11
    .NET VNC Viewer is a VNC viewer written entirely in C#. It is binary compatible with Smartphones, Pocket PCs and Windows desktops (.NET CF or .NET Framework). I write this because other VNC viewers on Pocket PC do not do full screen and screen rotation.
    Downloads: 1 This Week
    Last Update:
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  • 12
    CanFestival focuses on providing an ANSI-C platform independent CANOpen stack that can be implemented as master or slave nodes on PCs, Real-time IPCs, and Microcontrollers. A WxPython based CanOpen Object Dictionary editor GUI is also provided.
    Downloads: 4 This Week
    Last Update:
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  • 13
    This is an emulator for the TI line of graphing calculators. The emulator runs programs written for z80 and 68k based calculators. This program is written for MS Windows but we need porters! This project was abandond by rusty wagner
    Downloads: 4 This Week
    Last Update:
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  • 14
    SmartWin++ is a C++ template GUI library written to give the flexibility of the Windows API without the hassle and lack of typesafety that MFC/WTL delivers. A flexible, expandable abstraction of the Windows API (formerly Win32 API).
    Downloads: 1 This Week
    Last Update:
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  • 15
    A JNLP client compatible with small JVM's such as Creme. It allows to download, update and start a Java application that is deployed using JNLP. The client can be used to deploy Java applications to handheld devices/PDA's.
    Downloads: 1 This Week
    Last Update:
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  • 16
    Windows port of the freedesktop.org DBus. The code is now part of the official DBus releases: http://www.freedesktop.org/wiki/Software/dbus#Windowsport. But you could find binaries here.
    Downloads: 1 This Week
    Last Update:
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  • 17
    Alexandria is an archive system for large data amounts. Suitable for inhomogenous collections of books, media files, art items and other artifacts. Main focus is on easy usage, small executable file and portability.
    Downloads: 0 This Week
    Last Update:
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  • 18
    Defa Protect HTML5 Video From Download

    Defa Protect HTML5 Video From Download

    Prevent and Protect Your HTML5 Video, Music , Audio From Download Free

    Defa Protector is A Simple PHP and Wordpress Plugin To Protect and Prevent Video Save As From Browser and Some Video Grabber. There is 100% Guaranteed Protection and There might be some tradeoff but If you care about Digital Rights Management of Your Video and Music Content. This Project is for you. Defa Protector 6.7.1 Revamp Code For Better Performance To The Bone. We almost rewritten this project from scratch.
    Downloads: 0 This Week
    Last Update:
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  • 19
    Intel® Mobile Platform SDK 1.3 covered by BSD license, enables developers to build mobile-aware applications. It provides a set of libraries and runtime components, and programming interface, common across Windows and Linux platforms.
    Downloads: 0 This Week
    Last Update:
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  • 20
    The Location Trader Project wants to provide free and reliable positioning information for mobile clients to enable location based services independently from certain network operators and in heterogeneous network environments.
    Downloads: 0 This Week
    Last Update:
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  • 21
    PDA ROM Editor for Windows Mobile (SE) devices. CURRENTLY UNDERGOING MAJOR REVAMP! To provide editing of Extended ROMs for Custom Application Installation and Splash Screen changes plus editing of ROM headers to allow porting between devices.
    Downloads: 0 This Week
    Last Update:
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  • 22
    Program prevents PDA device to go to sleep/Idle. You also can make PDA screen always light up (like TomTom applications).
    Downloads: 0 This Week
    Last Update:
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  • 23
    Project Shutdowner allows the shutdown of remote computers across the internet, without requiring a windows version with the windows shutdown tool. Computers can be shut down from anywhere with the click of a button.
    Downloads: 0 This Week
    Last Update:
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  • 24
    The Sino Project is an Open Source initiative that utilized code developed by the Chinese government. Sino Linux Middleware v3.0 and Mobile Business Application Suites are built and tested in conjunction with the OSDL in a high volume, enterprise read
    Downloads: 0 This Week
    Last Update:
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  • 25
    Voxampp is an Enterprise IP TriplePlay Application Stack (eIPTAS) a - run-time toolkit - for Internet Entrepreneurs that want to deploy rich IP Carrier Networks. Its goal, to facilitate worldwide Open Access Social Networks using IPTV, VoIP and much more
    Downloads: 0 This Week
    Last Update:
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