HaloMods "Classic" Read-only Archive

I updated my drivers, I have lastest version of directx, but everytime I start up regular halo, i get the exception error, but here's the thing, I CAN start up halo CE but i lost my cdkey, i dont care bout the cd-key, i just wonder why regular halo wont start up but halo ce will.

its cuz u modded something in halo that wont let it start. Figure out ur cdkey and reinstall halo. Or put in ur cd and overwrite all the files in ur MAPS folder with origionals. Theres a sticky somewhere on how to do this.