Some No-CD/Fixed EXE files work fine in Single Player mode but are detected to be modified when trying to play online.Always make a backup of the files that are overwritten by the File Archive, as the original files are usually required to update the game to a newer version or to play Online!.Zoo Tycoon 2: Endangered Species v1.0 UNLOCKER.Zoo Tycoon 2: African Adventure ALL ACCESS CHEAT.
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