You got several choices, firstly you could go get a nocd crack from here,
gamecopyworld.com
Did you save the download to your desktop? if not down load it again and do that first, then uninstall it, delete any folder that it might have used to save games mod etc, then run CCleaner, next turn off your PC, turn it back on run CCleaner again just to make sure, ensure there are no registry key issues by running Ccleaner in this mode. now reinstall from the desktop. when its installed don't run it, make sure you un tick the box that auto runs it, don't register it yet, just make sure its done installing, turn off your computer, back on again, right click and run as admin, and in and older version of windows, Run the game, wait and check for error messages, if you get an error message post it here, if it won't run, install the crack you downloaded earlier to the install folder in my computer main game files, run from this folder.
Can't think of anything else right now but if there is any error message post it and I will check into it for you.
any message about dll. is normally a corrupt file in the download. this can be solved by re-downloading and reporting to the game site you got it from.
hope this helps
