NTPort Library enables your Win32 application to real-time direct access to PC I/O ports without using the Windows Drivers Development Kit(DDK) - NTPort Library provides support for Windows 95/98/Me and Windows NT/2000/XP/Server 2003. NTPort Library is easy to use. Under Windows NT, 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 IN or OUT statement.