Advanced Run Opens Programs as Another User

Lifehacker:

“Windows only: Freeware application Advanced Run is a replacement for
the traditional Windows Run dialog that can run any program as another
user without logging you out of your account. Aside from that, Advanced
Run does all the same things your regular Run dialog does, and Advanced
Run will launch in place of it whenever you hit Windows-R or Start
-> Run. It also adds a Run As option to your right-click dialog, so
you can launch any program on your desktop as another user. Advanced
Run is freeware, Windows only (go to the Downloads tab to download).”

Advanced Run [via Shell Extension City]