>You need to create a Launher EXE. In it, use AGETFILEVERSION() to compare the version numbers of the EXE's to see whether a download is necessay. Make sure you select "Auto Increment" in the Version options when building an EXE.

Thanks Charlie! So basically it seems my Launcher exe will handle the mechanics of it, & should really have to worry about building anything into the initial app to make this easier when it's time for enhancements to be released.