Environment Variables May Prevent Logging On

ID: Q174625

The information in this article applies to:

Microsoft Windows NT Workstation version 4.0
Microsoft Windows NT Server version 4.0
Microsoft Windows NT Server version 4.0, Terminal Server Edition

SYMPTOMS

When logging on to a Windows NT system, some or all users are unable to log on successfully.

CAUSE

The above symptom may occur if the value of any System Environment Variable contains an equal sign (=). If Winlogon gets an error when trying to set an environment variable, the logon attempt will fail.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, please see the following article in the Microsoft Knowledge Base:

Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack

STATUS

Microsoft has confirmed this to be a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.

Additional query words: cpl ntcpl login character equals

Keywords : NT4SP4Fix ntdomain kbbug4.00 kbfix4.00.sp4 ntconfig NTSrvWkst
Version : WinNT:4.0
Platform : winnt
Issue type : kbbug