Posted on October 13, 2007, Steve UT3 Demo HotFix for XP64 & 2k3
It seems during the excitement of getting the Unreal Tournament 3 “Beta Demo” to the masses, Epic didn’t quite thoroughly test the executable on Windows XP 64 or Windows Server 2003 operating systems. It seems many of those users were left scratching their heads yesterday when presented with an error message denying them play. Today, balance in the universe has been restored. Epic has sent word:
We created a fix for the game not starting up on Windows XP 64 and Windows Server 2003 systems. This patch has not undergone the same amount of QA as the released demo so I strongly encourage to ONLY replace the UT3Demo.exe with the one from the patch if you are experiencing the “Modified executable code is not allowed” issue at startup.
UT3Demo.exe md5sum: 9ac494f243bdd6d71c2d612d8d98fba3
Assuming you didn’t already nuke the demo from your hard drive, a small 9.5MB download will solve all your problems. If you haven’t been able to even install the demo, there is a workaround here.