Hello, I had an application working well under V4.0 and, trying to compile it with the new V5, I had an error message that I can't understand (see attached doc file in zip). I also attached my application's source. Any idea ? *** Update *** I finally found out that moving all the code that wasn't just assigning or declaring global variables from "sub globals" to "sub app_start" solved the problem. Since this is quite easy (once you know it), this topic can be marked as solved.