I know this thread is old, but I'd like to know if there's still need for an unprotected exe even if there's already a fixed exe available?
For example I've got these unprotected exe files for Civilization IV v1.74 and the addon Warlords v2.13 (both latest version available) that came with the US version of "Civilization IV - The Complete Edition" that is completely DRM-free. As you might know Beyond the Sword and Colonization are already unprotected with the 3.19 and 1.01 patches, but the European and original US editions of the two games mentioned before were still protected with SafeDisc 4. Only the US edition of Civ4 Complete was unprotected (for whatever reason).
Civilization IV 1.74:
http://www48.zippyshare.com/v/81571032/file.html
Civilization IV Warlords 2.13:
http://www48.zippyshare.com/v/50931929/file.html
So in case you're interested in these kind of unprotected exe files I've got more (for example Sid Meier's Railroads, Spellforce 2 and Anno 1701). So let me know if I should upload these as well.