Unlocking programs dont work in Win2k/XP. I think the best solution is to use dual-boot with Win98.
But if you really want you can try this program: <a href="http://www.samuel.cz/~brainman/userport.rar" target="_blank">userport.rar</a>
Here is description:<br />UserPort.SYS is a kernel mode driver for Windows NT/2000 that gives usermode programs access to I/O<br />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.<br />The driver can be used for the following purposes:<br />· To run software on Windows NT/2000 that normally only runs on Windows 95/98/ME.<br />· To easily access hardware like the parallel port and other I/O ports.
Inside archive is documentation in pdf format.