Version 1.0.631 still uses the original SecuROM wrapper. The crack removes the entry point that calls SecuROM’s kernel-level driver. This is why cracked executables are typically smaller than the original files.
Navigate to C:\Program Files (x86)\Electronic Arts\The Sims 3\Game\Bin\ Copy and rename TS3.exe to TS3_Original.exe . The Sims 3 No Cd Crack 1.0.631-