SSME does not use any registry keys (except the file extension ones). It uses the following DLLs (try to update, I guess): comctl32.dll, IMM32.DLL, LPK.DLL, USP10.dll, MSCTF.dll, imm32.dll, Msimtf.dll A thought: maybe ssme.ini in c:\windows is corrupted? By the way, !@#$%^&* already is a well-working map editor, why waste time on another one?