| VMWare's Back Virtual Disk drivers for Windows to support VMWare | |
| Visual Enterprises NTIO DDK Provide Visual C++ and Visual Basic developers code and tool resources for writing complicated device IO_CTL drivers. | |
| VGAdoc Programming information for every RAMDAC, EGA, VGA, SVGA, and VESA video card made up to 1995. | |
| User CONfigurable Driver (UCON) Enables to quickly and easily develop communications drivers for any serial device or ethernet device. Designed as a driver plug-in, UCON is completely integrated with OPC server KEPServerEX. By Kepware Technologies. | |
| USB Analyzer A professional software-based analyzer for USB driver developers. It captures and analyzes I/O requests for all USB devices. Targets Windows platforms and USB 2.0 and 1.x. | |
| Unified IO C++ interface for industrial IO cards. An alternative to device drivers provided by hardware vendors. | |
| TVicHW32 A toolkits for real-time direct access to port I/O, physical memory, hardware interrupts from a Win32 application. [Shareware] | |
| Sybera Toolkits, custom development, and training for Windows kernel driver development. Content in German and English. | |
| Pulse Train Software Ltd. Custom device driver development and File System filter framework for Windows NT/2000/XP. | |
| OSR Online Device driver development information, DDK online. | |
| NTPort Library Enables real-time direct access to PC I/O ports. By Zeal SoftStudio. [Shareware] | |
| NT Kernel Resources Windows Packet Filter Kit for developing filtering/modifying communication applications. Also Windows 2000 undocumented kernel structures. Open source TDI firewall. | |
| Modular Systems Development of device drivers for Windows, system software and .NET applications. | |
| MemAccess Library Gives programmers control of hardware devices from Win32 application without using the Windows Drivers Development Kit (DDK). It allows real-time direct access to memory mapped I/O. By Zeal SoftStudio. [Shareware] | |
| Matrikon OPC Real-time process drivers for plant systems, including OPC clients and servers, as well as driver utilities, development tools, educational resources, and training and support services. | |
| Kernel Drivers Offers design, implementation and testing custom Windows filesystem and device drivers. | |
| Jungo Provides WinDriver and KernelDriver, device driver development tools, for Windows,Linux,Solaris. | |
| Ionific Driver Development Professional device driver development for Windows, including audio, network, graphics, custom I/O and USB drivers. | |
| Intelligraphics Device driver development including display, audio, communications, digital imaging, telecom, and embedded systems software. | |
| I/O Communications module Provides access to devices on a PCs serial and parallel port. (trial version) | |
