The EXE's are created automatically every time you run a program from the IDE. You'll find them in the same folder as your source with the same name as your source (although the debug enabled version will have 'debug' as part of the filename).
If you don't want a particular version overwritten, make a copy of it (along with any other files it will need) and place that somewhere else.
If you don't want a particular version overwritten, make a copy of it (along with any other files it will need) and place that somewhere else.