JR, Oops. I made a mistake on the last reg entry. It should read: get setRegistry("HKEY_CLASSES_ROOT\Math Generator\DefaultIcon\", "C:\Program Files\Math Generator\Math Generator.exe,1") -- this line tells window that you have a document icon. It will use the one you set in MC. I forgot the "\" character behind: DefaultIcon Will not work without that. -Mark Talluto