1. Custom campaigns built from unpatched versions of the game are playable on computers that don't have the patch installed (obviously), 2. Custom campaigns built from patched versions of the game are Tip: most custom campaigns here at EH with a release date after August 2003 will have been generated from a patched version of the game, so you are advised to have the patch installed yourself if you want to download and play them successfully. [This message has been edited by Gweilo (edited 03-30-2004 @ 02:52 PM).]