Microsoft KB Archive/831385

= You receive a Stop error when network traffic is initiated and a filter driver is loaded =

Article ID: 831385

Article Last Modified on 5/17/2007

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APPLIES TO


 * Microsoft Windows XP Professional
 * Microsoft Windows XP Home Edition

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SYMPTOMS
You may receive a &quot;0x000000c1&quot; or a &quot;0x000000c2&quot; Stop error message when network traffic is initiated and a filter driver is loaded. For example, this error may occur when you are using firewall software or virtual private network (VPN) software in the following situations:
 * You connect a wireless network adapter by using 802.1X authentication, and your firewall is using a filter driver.
 * You try to use Microsoft NetMeeting over a VPN connection.



Service pack information
To resolve this problem, obtain the latest service pack for Microsoft 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

Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Windows XP service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.   Date         Time   Version         Size    File name    Platform -  28-Oct-2003  17:26  5.1.2600.1314   12,416  Ndisuio.sys  x86 28-Oct-2003 17:26  5.1.2600.1314   40,960  Ndisuio.sys  IA-64 28-Oct-2003 17:27  5.1.2600.1314   66,048  Psched.sys   x86 28-Oct-2003 17:27  5.1.2600.1314  252,544  Psched.sys   IA-64



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section. This problem was first corrected in Microsoft Windows XP Service Pack 2.



MORE INFORMATION
For additional information about the terminology that is used in this article, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the Standard Terminology That Is Used to Describe Microsoft Product Updates, Tools, and Add-ons

Keywords: kbhotfixserver kbqfe kbwinxpsp2fix kbqfe kbwinxppresp2fix kbfix kbbug KB831385

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