THE BEST METHOD to run PSX games (and everything else for that matter) is via Retroarch - http://buildbot.libretro.com/nightly/
If you have any questions on how to set it up on Windows please feel free to ask, its very easy.
Hmm
Retard
Revenge
Retribution
radappertization
Revoke
"I am... Sheik. One of the last of the Sheikah tribe..."