Run as another user option in windows 7

In windows vista if we want to launch any administrator related task then we have to right click on the item and select Run as administrator option.windows 7 provides much more advanced feature that is either u can run as administrator or  u can Run as another user.to do this
step1:- Holding the shift key right click on da application u would like to run
step 2:-select Run as another user
the above option is also available in winvista but thru command prompt.here u can do this directly.
So simple isnt it .