You have to have labVIEW run-time installed on your computer in order to run a LabVIEW programs (vi or exe). What you can do when you distribute an exe file is to create an installer which lets you install LabVIEW run-time and create a menu item (in Windows) in the Start>>Programs menus. Then you can distribute the whole package and after running the installer, LabVIEW run time as well as the exe is installed.
You can do this in the installer settings of the Application builder (when you create the .exe file). Go to the "Advanced" section. There you can add the LabVIEW run-time Engine to the installer.
One other possibility you can do if several people want to use the programm over Lan is to use the LabVIEW webserver. You can run a programm somewhere on the
network and other people can open the front panel in their Webbrowser. But maybe that's not exactly what you want. ??