clearing user name | Win2K logon

From: evan.cooch@NOSPAMcornell.edu
Date: 03/11/03 

From: evan.cooch@NOSPAMcornell.edu
Date: Tue, 11 Mar 2003 16:16:32 -0500

As a basic security measure, I'm trying to clear the name of the last
user logged onto a Win2K system. I tried the direct approach by
editing the regsitry entry:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows
NT\CurrentVersion\Winlogon

DontDisplayLastUserName REG_SZ
Range: 0 or 1

Default: 0 (false)

By default, Windows NT displays the name of the last person to log on
in the Username space of the Logon Information dialog box. If you add
this value entry and set it to 1, the Username space is always blank
when the Logon Information dialog box appears.

Well, in theory this should work, but on my system, it isn't. Even
after setting it to 1, I still get the name of the last user in the
user name field of the logon box.

This one is driving me nuts. What could be overriding a registry
setting? Any ideas/suggestions?

Thanks in advance....