I have downloaded UniWS for a mod on Need for Speed Underground (m2011). UniWS will not let me type in a resolution. It does find the SPEED.EXE and does everything else properly, but that simple thing it will not let me do. I am running Windows 7 Home Premium 64-bit. I am hoping for a fixed version or a way to fix this.
UniWS is looking for certain info in the executable. If it doesn't find it it won't let you change it. This has happened in the past with games that have different localizations also having different versions. IIRC UniWS may also have issues with 64bit OSs. Also some games install different executables based on the OS being 32 or 64bit.
It looks like NFS needs a cracked executable so I would see if there are multiple versions of said executable online. It may work with one and not another.