Let me provide more details. I nLited my Win XP SP3 with quite a few removals and modifications according to the tutorial http://www.i64x.com/eeexp.php. I further modified that setup by enabling Nlite’s compatibility option “Fast User Switching” and, in Nlite’s components/Services, I kept “Secondary Logon”, “Terminal Services” and “Shell Services”. Now, when I start Windows and use Administrative Tools/Services, I see services “Secondary Logon” and “Terminal Services” shown as “Started“. Service “Fast User Switching Compatibility” is present, but is not started and shown as “Manual”. If, using Administrative Tools, I change it to “Automatic”, it makes no difference. Also, if I start this service (using Administrative Tools), it also makes no difference, either. Normally, in typical Windows XP installation, one has “Log Off “ and “Turn Off Computer” buttons at Windows Start menu. And, when one clicks the “Log Off “ button, he/she is presented with “Log Off Windows” window and there are 2 buttons: “Switch User” and “Log Off”. In my installation, at Windows Start menu, I only have “Turn Off Computer” button and I do not have “Log Off “ button. Would it have anything to do with the fact that my installation has Windows classic (Win 2000-like) look and classic logon prompt? Further, if in “User Accounts/Select logon and logoff options”, I enable “Use the Welcome Screen” and “Use Fast User switching”, then do get Welcome Screen, but no Fast User switching. Moreover, I then only have “Turn Off” button and no “Log Off” button. Please help me get Fast User Switching back. And one more question: Once Windows is installed, how I can force a service, say, “Fast User Switching Compatibility” at Windows start up?