Sounds like your 7 missing files,because as long as i've been using 7,none of the versions of epsxe has had a problem.Make sure you have everything installed.The epsxe folder can be in the program files,just make sure everything is organized and there aint no files missing from those folders,and have the correct plugins and bios in it.if you using 1.7 then use the zlib1.dll.You might wanna give us more details.