In previous versions of Windows (XP and Vista), you could ran an application as administrator by using the context menu. You had no such option if you were wanting to run the application as a different user. Windows 7 adds this ability, allowing you to use the context menu to run a program as the administrator or as another user.
1. Find the desired application executable or shortcut.
2. Hold down the Shift key and right-click the file or application.
3. Select Run as different user from the resulting context menu.
4. Input the User name and Password for the desired user when prompted.
5. Click OK.