Open Source C# System Software for Windows

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

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  • 1
    Snap7

    Snap7

    32/64 bit multi-platform Ethernet S7 PLC communication suite

    Snap7, through three specialized components: Client and the inedited Server and Partner, allows you to definitively integrate your PC based systems into a PLC automation chain. Designed to transfer large amounts of hi-speed data in industrial facilities, it scales easily, down to small Linux Arm boards such as Raspberry PI. Hi level object oriented wrappers are provided, currently C/C++, .NET/Mono, Pascal, LabVIEW, Python with many source code examples. Very easy to use, a full working server example is not bigger than the “Hello world”. Many projects/makefiles are ready to run to easily rebuild Snap7 in any platform without the need of be a C++ guru. Very detailed documentation provided.
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    Downloads: 845 This Week
    Last Update:
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  • 2
    VitalSignsCapture

    VitalSignsCapture

    Download data from medical device interfaces in ICU & Anaesthesia

    A C# .NET app to download or capture data from several medical device interfaces such as Datex AS3 S/5 Anesthesia, Philips Intellivue, GE Dash, Mindray HL7, Spacelabs, Draeger Infinity, Draeger HL7 patient monitors, GE Engstrom, Draeger (MedibusX), Maquet (Servo-i, Servo-U & Flow-i), Puritan Bennett ventilators, Covidien BIS Vista cerebral monitor, Fresenius Agilia, Alaris Carefusion, BBraun Spacecom syringe and volumetric pumps, Roche Cobas ASTM ABG analyzers. Requires Visual Studio 2022, .NET 8 or Visual Studio for Mac to compile. Support for capture from other monitors is planned in future.
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    Downloads: 111 This Week
    Last Update:
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  • 3
    MSI Downloader

    MSI Downloader

    MSI installers for a wide range of software and utilities

    MSI Downloader has been created for IT professionals who want a quick and easy method of downloading the latest MSI installers for various software. MSI installers are much easier to use for deployment using systems like Group Policy, Microsoft Deployment Toolkit (MDT) and Microsoft System Center Configuration Manager (SCCM). Some publishers happily supply MSI installers for their software, however, some are very hard to find. So this new tool will not only be providing the easy to find MSI installers, but also the hard to find ones and in some cases, the impossible to find ones - ones where we will create the MSI installers for them! The aim to keep all the MSI Installers within our utility fully up to date, but if you find something that is not, please let us know and we will correct it.
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    Downloads: 198 This Week
    Last Update:
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  • 4
    Virtual Router Plus Windows Wifi Hotspot

    Virtual Router Plus Windows Wifi Hotspot

    Turns any Windows 7 or later computer into a Wifi Hot Spot

    Virtual Router Plus is based on Virtual Router project and turns any Windows 7 or later computer into a Wifi Hot Spot using Wireless Hosted Network technology.
    Downloads: 171 This Week
    Last Update:
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  • 5
    MQTTnet

    MQTTnet

    High performance .NET library for MQTT based communication

    MQTTnet is a high-performance .NET library for MQTT-based communication. It provides an MQTT client and an MQTT server (broker) and supports the MQTT protocol up to version 5. TLS support for client and server (but not UWP servers). Extensible communication channels (e.g. In-Memory, TCP, TCP+TLS, WS). Lightweight (only the low-level implementation of MQTT, no overhead). Performance optimized (processing ~150.000 messages/second). Uniform API across all supported versions of the MQTT protocol. Tested on the local machine (Intel i7 8700K) with MQTTnet client and server running in the same process using the TCP channel. The app for verification is part of this repository and stored in /Tests/MQTTnet.TestApp.NetCore. List of connected clients available. Supports connected clients with different protocol versions at the same time. Able to publish its own messages (no loopback client required). Able to receive every message (no loopback client required).
    Downloads: 7 This Week
    Last Update:
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  • 6
    A Windows TFTP server and client written in the .NET framework using C#. Includes support for TFTP options, logging of TFTP requests to different sources including to a SQL server. A class is also available to include TFTP into your own program.
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    Downloads: 57 This Week
    Last Update:
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  • 7
    PROJECT NO LONGER HOSTED @ SOURCE FORGE Monitor network bandwidth. Desktop and Systray graph. Monitor any or all network interfaces. Ping/Trace/UPnP utilities. Email notifier (POP/IMAP). Requires .NET 2.0.
    Downloads: 21 This Week
    Last Update:
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  • 8
    SerialPortNet is an open source serial port communication library for Microsoft .NET. It's written in c#, implements complete .NET 2.0 specifications, and is designed to allow for multiple OSes and add-on 3rd party Serial to Network adapters.
    Downloads: 9 This Week
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  • 9
    PLC-Logger

    PLC-Logger

    PLC-Logger and Analyzer

    Use PLC-logger to store and analyze data from almost every PLC-system. The following PLC-Systems are accessible: - Every PLC-System running a Modbus-TCP / Modbus-UDP Server - Siemens S7 via IBH NetLink - Siemens S7 with Ethernet-Interface - Codesys-based PLC-Systems - via OPC-Servers V0.61: - Bugfixes V0.60: - Some Bugfixes - Some data evaluation V0.59: - Modbus TCP Server Simulator supports Modbus UDP - Possibility to set bookmarks V0.57: - Modbus UDP supported - Edit configuration from connection-manager - Configuration keeps selected after starting or stopping V0.56 HF1: - Bugfix executing EasyModbusTCP Server Simulator V0.56: - Integration of EasyModbusTCP Server Simulator in "Tools"-Menue - Improvements in Modbus-Connection Wizard - Modbus Addresses shifted by (-1) to meet Modbus specification
    Downloads: 9 This Week
    Last Update:
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  • 10
    Airfox

    Airfox

    Airfox is a free and fast web browser. It uses the Gecko Engine.

    Airfox is a fast, consistent, reliable, secure, private and independent web browser. Developed in the Microsoft .NET Runtime Environment, Airfox uses the Gecko Engine also seen in some well-known browsers such as Firefox, Waterfox, Pale Moon. Some advanced features such as Reliable Download Manager are not available due to restrictions from the GeckoFX runtime, but as seen from the results of the futuremark, acid 3 & acid 2 tests, Airfox’s scores/rankings are merit. We are just asking to support us by downloading Airfox and giving it a try. We promise that V2 will be just as good as the other famous browsers. We just want you to follow us on this journey. We want you to follow us on this quest. The quest for true browsing speed. The quest for an uncluttered web. The quest of YOUR ideal web . Download it at http://www.airfox.sourceforge.net
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    Downloads: 7 This Week
    Last Update:
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  • 11
    Yammy (Yahoo Messenger Archive Decoder) allows you to decode and view not only yours but, also other stored YM conversations. You don't even need a password!
    Downloads: 14 This Week
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  • 12
    HOTSPOT

    HOTSPOT

    HOTSPOT for windows 10

    Windows is no longer away from hotspot. This software lets you turn your windows 10 PC into a hotspot. Create your middle-ware with apache, IIS or any server , test it by making your PC server. Create LAN servers to play high end LAN games. Share your internet between your clients and many more.
    Downloads: 7 This Week
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  • 13
    UDPStressTest

    UDPStressTest

    A Desktop app for network stress testing, TCP-Ping and icmp ping.

    Easy to use GUI app. *It reads your active and Up NIC and gets some info about it. * You can see your machine IP Address, gateway, subnet mask. * You can ping any ip address you want and get measure of TTL. * It gets the available range of IP's in your local network. * When you start the test you see testing throughput as a graph against time also total size of packet sent in (MB). *You can use it as DOS attack tool. *Every action done on the app is logged in XML file as data source (only stress test + ping). *TCP-Ping is a perfect way to discover network devices which active firewall to ignore ping packets or you can use it as TCP port scanner to check your network security. *Stress test speed graph can be exported as image easily. *Searching log files for certain data is also integrated to app. *Exporting search results as static HTML page.
    Downloads: 6 This Week
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  • 14
    SoftHotspot

    SoftHotspot

    SoftHotspot - Create wifi hotspot connection easily

    SoftHotspot lets you share Internet from your pc with your smartphone, laptop, media player, tablet and other pc. Easily create a WiFi Hotspot and connect all your devices. Share your WiFi, 3G, 4G and Ethernet connection with other devices. Your Hotspot is automatically secured with WPA2-PSK encryption and that means, all users will get the most secure WiFi sharing experience. Watch network usage and get notifications when device connected/disconnected with your hotspot network. Please Note: You need to install .net 4.0 for this app to run on windows 7.
    Downloads: 2 This Week
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  • 15
    IIOP.NET allows a seamless interoperation between .NET, CORBA and J2EE distributed objects. This is done by incorporating CORBA/IIOP support into .NET, leveraging the remoting framework.
    Downloads: 3 This Week
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  • 16
    Driver support for 3D Controller Hardware. We hope to support SDL Input, DirectInput, and other major controller API's including game consoles and embedded systems.
    Downloads: 5 This Week
    Last Update:
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  • 17
    ByteSync

    ByteSync

    All-in-One Sync, Backup & Deduplication Tool

    ByteSync is a powerful open-source tool for remote file comparison and synchronization, designed to transfer only what truly matters: the differences. Whether you're syncing large files, backing up remote folders, or handling extensive sets of small files, ByteSync delivers speed, security, and efficiency—without unnecessary data transfers. Compatible with Windows, macOS, and Linux, ByteSync leverages cloud-based orchestration with end-to-end encryption, eliminating the need for VPNs or firewall configurations. No continuous background syncing, no bloat—just fast, on-demand file synchronization between remote devices.
    Downloads: 5 This Week
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  • 18
    Automatic Volume Mixer

    Automatic Volume Mixer

    A tool for automatization of Windows Volume Mixer.

    Automatic Volume Mixer is a tool that allows automatization of Windows Volume Mixer based on user's rules. You can open the Volume Mixer by right-clicking on the speaker icon in the system tray and selecting Open Volume Mixer. This application is an automatic version of that applet. Common usage examples - Pausing your audio player (e.g. foobar2000) whenever any other application makes a noise, - and resuming playback once the noise is gone. This enables you to keep your audio player running in the background at all times. - Briefly muting all applications while a notification is playing. - Forcing application's volume to a set level - Automatically lowering volume during night - Launching processes/popups when some application makes noise
    Downloads: 7 This Week
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  • 19
    RDPManager is a configurable menu that sits in the system tray and opens remote desktop windows to other machines, using RDP (Remote Desktop), VNC, or PCAnywhere.
    Downloads: 1 This Week
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  • 20
    Torrent Search Engine (WinApp)

    Torrent Search Engine (WinApp)

    Fast and powerful search engine

    Torrent Search Engine: TorrentSearch is a framework and script language for searching Bit Torrent websites and search engines for torrents.
    Downloads: 3 This Week
    Last Update:
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  • 21
    VNC-Client for .NET is a VNC-Client written in C# using the .NET Framework. It allows you to interact with a remote computer running a VNC-Server.
    Downloads: 3 This Week
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  • 22

    Virtual Ghost Explorer

    Tool for sharing folders schemas.

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    Downloads: 3 This Week
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  • 23
    KeepUp File Updating Tool

    KeepUp File Updating Tool

    Keep local files current to online sources

    The KeepUp File Updating Tool is a utility designed to simplify and automate the process of keeping local files up-to-date by checking against remote URLs. Ideal for technicians and IT professionals, this tool ensures that you always have the latest versions of critical files, whether they are stored locally on your system or a removable drive.
    Downloads: 2 This Week
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  • 24
    This app can check if password valid for login.This app support for 3 mail server: gmail.com mail.ru yandex.ru Soon I'll upgrade my app.He will support yahoo.com etc... I will happy to listen your views!-)
    Downloads: 1 This Week
    Last Update:
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  • 25
    FBENCH

    FBENCH

    FBENCH is TCP and UDP throughput-measurement and stress-test tool.

    FBENCH is the throughput benchmark tool for measuring TCP and UDP performance between two systems. It also used as the networking stress tool. Originally it was developed as part of the FNET TCP/IP stack project.
    Downloads: 1 This Week
    Last Update:
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