Community guides often point to ZIP files for the following purposes:
If you have downloaded such a file, the standard procedure involves: the ZIP using a tool like WinRAR or 7-Zip .
The most popular ZIP file ( NFSUnderground2.WidescreenFix.zip ) adds support for modern resolutions and fixes the game's aspect ratio.
ZIPs frequently contain dinput8.dll , which allows custom scripts and mods to run.
the contents (often a scripts folder and .dll files) directly into the game's installation directory .
If the game refuses to launch or asks for a disc, you can try this community-suggested "Foobar" trick: