Thanks to help from Robbie Ward (User: winapp2.ini); I've made this very simple console app to detect common errors with your winapp2.ini file. How do I use it? Simply place 'winapp2.ini' in the same folder as 'WinappDebug.exe' and run the tool. It will output a list of errors that it detects. What kind of errors does it detect? - Starting and trailing whitespace - LangSecRef, FileKey & RegKey spelling errors - Spaces in environmental variables - Missing numbers next to FileKey and Regkey