The problem arises on the "WshShell.Run custominst" line. H: is a network drive mapped earlier in the script. I have tried Epic2002_Custom and Epic2002_Custom.EXE as the executable name, both stating that the system cannot find the file specified. I'm sure it's just something with my syntax, but nonetheless I havent figured it out.
Set WshShell = WScript.CreateObject("WScript.Shell")
custominst = ("H:\Epic Summer 2004\epicinstall2004\Epic2002_Custom")