NTPort Library enables your Win32 applications to real-time direct access to PC I/O ports without using the Windows Drivers Development Kit(DDK). NTPort Library is easy to use. Under Windows NT/2000/XP, NTPort Library driver can be load and unload dynamically, so you need not any configuration. NTPort Library is also an ideal replacement of old BASIC INP or OUT statement. This tool also supports getting the base address of LPT ports. Visual Basic, Visual Basic.NET, Visual C#, Visual C+, Delphi, Borland C++ Builder samples are included. Matlab, Borland C++, Visual Fortran, PowerBASIC, InstallShield and Setup Factory samples are available for download.

NTPort Library is the Shareware version. The full version can be purchased by clicking on the "CLICK HERE TO ORDER" button below for around  30.00USD.