Microsoft KB Archive/824413

= You receive an HTTP 500 error message for POST requests that are larger than 64 MB when you use NTLM authentication =

Article ID: 824413

Article Last Modified on 11/21/2006

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APPLIES TO


 * Microsoft Internet Information Services 5.0

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SYMPTOMS
When you try to upload more than 64 megabytes (MB) of data in a POST request to a Web site, and if you have NTLM authentication turned on, you receive an HTTP 500 error message from Microsoft Internet Information Services (IIS).

If the IIS log for the Web site is also configured to include the Win32 status code, the following Win32 status code of 10055 is listed in the log: An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full.



CAUSE
This problem occurs because a Windows Server 2000 limitation causes the server to run out of non-paged pooled memory.



RESOLUTION
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone 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.

Prerequisites
You must have Windows 2000 SP4 installed on the server before applying this hotfix.

Restart Requirement
You must restart your computer after you apply this hotfix.

File Information
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 --  29-Jul-2003  22:24  5.0.2195.6672     339,728  Asp.dll 29-Jul-2003 22:24  5.0.2195.6620     299,792  Fscfg.dll 29-Jul-2003 22:24  5.0.2195.6620       8,464  Ftpctrs2.dll 29-Jul-2003 22:24  5.0.2195.6620       6,416  Ftpmib.dll 29-Jul-2003 22:24  5.0.2195.6620       9,488  Httpmib.dll 29-Jul-2003 22:24  5.0.2195.6758      13,584  Infoadmn.dll 29-Jul-2003 22:24  5.0.2195.6758     248,080  Infocomm.dll 29-Jul-2003 22:24  5.0.2195.6758      62,736  Isatq.dll 29-Jul-2003 22:24  5.0.2195.6620       7,440  W3ctrs.dll 29-Jul-2003 22:24  5.0.2195.6794     349,968  W3svc.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section of this article.

