Turn Visual Studio into a powerful HMI/SCADA development package by simply dragging and dropping, no coding required. DF1, Ethernet/IP for Allen Bradley PLC controllers, and many more drivers. Free
Port Access Library Package for Win32 on VB,Java and Visual C++
Port Access 1.0
This is a Win32 programming platform indipendent Microsoft Windows 98/NT/2000/XP compatible hardware port access driver and API for Visual Basic,Java and Visual C++ . This project still under development.
A userspace USB peripheral driver for the Owon range of digital storage oscilloscopes. Based on the libUSB library it is aimed at Linux but also portable across platforms.