Sad to say this didn't work either. I forgot to update the options.ini files in Generals and Zero Hour again after reinstalling last week. I went through everything you guys have posted and tried it all in sequence, and I'm stuck on a DirectX error, even though I installed 9.0c. Also, when I update my options.ini files to my PC's max resolution, 1366x768, the game returns to giving me the "serious error".
Did you ever find a fix? My issue is identical. Drives me nuts because it was literal working earlier this week.
Delete dbghelp.dll in game folder and launch the game.
