>App.Path is available at design time (I use it myself). It might be possible that an executable has to be created before the App.Path object.property can be accessed.

By design-time I meant that you cannot set this path in say your project properties before your application is run, even if you're just testing it.

This would explain a case where the App.Path does not return the executable's startup directory but something else that you specified in such a property if it was available. But it is not.