Failed to update file during patch. Help please

Reinstalling the game should solve this problem.

1. Control Panel -> Z8Games -> CrossFire -> Uninstall CrossFire.
2. Open Up My Computer.
3. Delete the CF directory (Program Files/Z8Games/CrossFire/).
4. Delete the CF directory (/Document/CrossFire/) (Make sure you backup any screenshots or replays you may have before doing this).
5. Disable your anti virus.
6. Download the newest client from our downloads site.
7. Install the game from the new download.
8. Add the entire crossfire folder to your antivirus exceptions.
9. Re-enable realtime protection.

Good luck!