I have tried to install psp9 and it only will install up to the point of "registering modules' and then it stops. If I try to re-install I get error #1500 "an installation is already in progress". Is there a way to completely uninstall psp9 so that I can start over again? I've tried to get rid of files with zapp.exe and going into my "regedit". Three files remain on my pc "jepsps.dll, JascThumbShellExt.dll and 1gcore13.dll. Do I have to delete this files to start over again? If so, my computer won't let me do this.