v1.01 if it's the new release (IE. outside of Germany which had an older release some time ago now). There is a patch to bring it up to v1.02, which is the one RELOADED based their fix on.
Also, @OP: Slight typo. It's
installation.ini NOT
.inf. And you could skip the step of doing all the crack folder, by applying the patch and the crack to start with and include it all in the Data.arc, thus resulting in a pre-fixed version. The point of backing up the original .exe is also unnecessary, as updates for this game don't check for the presence of a known 'original' .exe file before patching
Result is approx. 66% of the original size at:
3.06GB