Thanks guys for all your replies, but i am referring to these:
"3.6. Emulator patches.
Some games, which normally wouldn't run in ePSXe, will start when using cheat codes. Patches for several games are already included in the emulator ! To select them, click on "Cheats" in ePSXe, load the game patch you need and enjoy ;-)
This function shouldn't be used to cheat in games, we recommend you to use [pec] (
http://pec.emucheater.com) for in game cheating."
... taken from the readme of readme of epsxe docs.