task manager then at the top its ither switch user or change user
lol my task manger doesnt have that feature for some reason, but i know its there lol, and there always, press ur start button, then press u then press S (im sure its s but double check) and then click the user
also try placing the program with in a windows folder u know C:\WINDOWS and place the folder there then run it on the other user name, it should bring it bk up if its ran on the other user name. i hope im makin sence tbh
also dnt log off just switch user, as loging off is normally like shutting down ur PC but only to the "start" screen, so if u switch the other user will still be running (which means running any programs in stead of stopping them)