Article ID: 318666
Article Last Modified on 5/14/2007
APPLIES TO
- Microsoft Windows XP Professional
This article was previously published under Q318666
SYMPTOMS
If Microsoft Internet Explorer maintenance policies are being applied, you may receive a "Stop C000021A" error message on a blue screen on a Windows XP-based client computer during the logon process. Or, the client computer may restart. This problem may not occur until you log on and log off several times.
You may also receive the following error message:
CAUSE
A buffer-overrun condition in the Internet Explorer Policy module may corrupt the process heap. This causes an access violation in Winlogon.exe. This problem occurs only if group policies are defined for Internet Explorer maintenance settings.
RESOLUTION
To resolve this problem, obtain the latest service pack for Internet Explorer 6. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
328548 How to Obtain the Latest Internet Explorer 6 Service Pack
-or-
To resolve this problem, obtain the latest service pack for Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
322389 How to Obtain the Latest Windows XP Service Pack
The English version of this fix should have the following file attributes or later:
Date Time Version Size File name
--------------------------------------------------------
01-Mar-2002 11:39 6.00.2715.100 294,912 Iedkcs32.dll
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Internet Explorer version 6 Service Pack (SP) 1 and Windows XP SInternet Explorer version 6.
Additional query words: stop 21A 0x00000005 (0x000000 0x00000000)
Keywords: kbhotfixserver kbqfe kbbug kbfix kbie600presp1fix kbwinxpsp1fix kbie600sp1fix KB318666
