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UserPort Documentation
1 Summary
UserPort.SYS is a kernel mode driver for Windows NT/2000 that gives usermode programs access to I/O
Ports. This makes it possible to access hardware directly from a normal executable in the same way as under
Windows 95/98/ME. This driver does not work on Windows 95/98/ME and there is really no need to run it
anyway because I/O ports are always granted to usermode programs on these operating systems.
E-mail: info@telesys.ru