I downloaded EA's [free C&C: Tiberian Sun](http://www.commandandconquer.com/classic) release, but when i try to run it, it complains of missing or broken DLLs. I tried to run the DLL regfix file, but it errored saying it could not access the registry. What do i do to fix it? I don't think the answer to [this question](http://gaming.stackexchange.com/questions/10353/running-command-conquer-gold-on-windows-7-64-bit-in-xp-mode) would help (I don't think what i have is Command and Conquer Gold).