>Could anyone explain to me what precisely occurs when you uncheck the "Debug Info" checkbox on the Project information dialog box? I have seen that an inmediate consequence is that when I compile the project the resulting .EXE file gets reduced in about 50% of its size. That's cool, but I would like to know what's the payload!

It specifies whether debugging information is included with the compiled file. For instance you cannot view program execution in the Trace window if it's not checked. Also, I don't believe you can use MESSAGE() in an error routine to return source code if it's not checked.

Anthony