Missing Screen Savers Do Not Lock Computer

ID: Q246142

The information in this article applies to:

Microsoft Windows NT Server versions 4.0 SP1, 4.0 SP2, 4.0 SP3, 4.0 SP4, 4.0 SP5, 4.0 SP6
Microsoft Windows NT Server versions 4.0, 4.0 SP4, 4.0 SP5, Terminal Server Edition
Microsoft Windows NT Workstation versions 4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3, 4.0 SP4, 4.0 SP5, 4.0 SP6

SYMPTOMS

If your password-protected screen saver file is missing, the workstation is not locked when the screen saver time-out occurs.

After the screen saver time-out occurs, the logoff message is ignored if you try to log off.

If you press CTRL+ALT+DELETE, the Windows Security dialog box is not displayed. Instead, the Unlock Workstation dialog box appears. You can then log on in order to log off.

CAUSE

This behavior occurs because the Unlock Workstation dialog box is not activated if the specified screen saver file is missing.

RESOLUTION

A supported fix that corrects this problem is now available from Microsoft, but it has not been fully regression tested and should be applied only to systems experiencing this specific problem. If you are not severely affected by this specific problem, Microsoft recommends that you wait for the next Windows NT 4.0 service pack that contains this fix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:

http://www.microsoft.com/support/supportnet/overview/overview.asp

The English-language version of this fix should have the following file attributes or later.

Windows NT 4.0, Terminal Server Edition:


   Date        Time           Size      File name      Platform
   ------------------------------------------------------------
   10/28/1999  11:16p         330,512   Winlogon.exe   Alpha
   10/28/1999  11:09p         225,040   Winlogon.exe   i386

Windows NT 4.0 Server and Workstation:


   Date        Time           Size      File name      Platform
   ------------------------------------------------------------
   10/04/1999  05:00p         274,704   Winlogon.exe   Alpha
   10/04/1999  05:01p         192,272   Winlogon.exe   i386

STATUS

Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article.

Additional query words:

Keywords : kbbug4.00 kbfix4.00
Version : winnt:4.0,4.0 SP1,4.0 SP2,4.0 SP3,4.0 SP4,4.0 SP5,4.0 SP6
Platform : winnt
Issue type : kbbug