Delay in Reponse to a Web Service Request When You Use NTLM Authentication (331020)



The information in this article applies to:

  • Microsoft .NET Framework 1.0 SP2
  • Microsoft .NET Framework 1.0

This article was previously published under Q331020

SYMPTOMS

If your XML Web service requires NTLM (Windows Challenge Response) authentication, responses to the Web service requests may be slower than responses to requests that do not need this authentication.

RESOLUTION

Note When you install the following fix, you must turn on the UnsafeAuthSharing class. To do so, set HttpWebRequest.UnsafeAuthenticatedConnectionSharing = true. A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next .NET Framework service pack that contains this hotfix.

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 about support costs, visit the following Microsoft Web site: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 typical 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 fix 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
   ----------------------------------------------------------------------------
   19-Oct-2002  20:28  1.0.3705.370    1,171,456    System.dll
   19-Oct-2002  20:28  1.0.3705.370    311,296      System.runtime.remoting.dll
   19-Oct-2002  20:28  1.0.3705.370    503,808      System.web.services.dll
				

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

Modification Type:MinorLast Reviewed:10/10/2005
Keywords:kbHotfixServer kbQFE kbbug kbfix kbNetFrame100preSP3fix kbQFE KB331020 kbAudDeveloper kbAudITPRO kbAudOEM