su for Windows 2000

There is a way in Windows 2000 to run process from under the account different from the account currently logged on. Windows utility called runas and it is very similar to the su UNIX utility. Very brief description of runas utility is available at http://www.ss64.com/nt/runas.html and more detailed usage scenario available at http://www.microsoft.com/technet/prodtechnol/windows2000serv/howto/seclogon.mspx