How can I compile a shell application from which to launch one of three sub-applicaions

I have three GUIs that I would like to run from a master GUI as a single stand-alone .exe file. Each of the three GUIs runs fine and I can compile and run them individually as .exe files. I can run the master GUI from the .m file and it will also run fine and I can access the three sub-GUIs from that master GUI.

But, when I try to compile the master GUI into a .exe file, it will not run (nothing happens after I double-click the application icon). There are no errors reported during the compile. Is it possible to setup this sort of shell application that gives the user the option of selecting which sub-GUI to run?