Internet Information Server 3.0 May Stop Responding to Client Requests

ID: Q235611

The information in this article applies to:

SYMPTOMS

Internet Information Server (IIS) 3.0 may stop responding to client requests, making it necessary to stop and restart the IIS 3.0 services.


CAUSE

When IIS 3.0 attempts to close a socket it first shuts down the connection, notifying the client that it is closing its side of the connection. While in this state, it is still possible for the client to continue to send data. Currently, there is no time-out, creating the possibility for a misbehaving client program to keep the connection's Web services open indefinitely. If this occurs while IIS 3.0 is cleaning up the connection, all other client requests are queued up. This eventually causes IIS 3.0 to stop responding to any client request.


RESOLUTION

A supported fix that corrects this problem is now available from Microsoft, but it has not been fully regression tested and should be applied only to systems experiencing this specific problem. If you are not severely affected by this specific problem, Microsoft recommends that you wait for the next Windows NT 4.0 service pack that contains this fix.

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 on support costs, please go to the following address on the World Wide Web:

http://www.microsoft.com/support/supportnet/overview/overview.asp
The English version of this fix should have the following file attributes or later: 

   Date      Time    Version      Size    File name     Platform
   -------------------------------------------------------------
   05/11/99  02:11p               130,320 Infocomm.dll  x86
   05/11/99  02:10p               222,992 Infocomm.dll  Alpha

NOTE: If this product was already installed on your computer when you purchased it from the Original Equipment Manufacturer (OEM) and you need this fix, please call the Pay Per Incident number listed on the above Web site. If you contact Microsoft to obtain this fix, and if it is determined that you only require the fix you requested, no fee will be charged. However, if you request additional technical support, and if your no-charge technical support period has expired, or if you are not eligible for standard no-charge technical support, you may be charged a non-refundable fee.

For more information about eligibility for no-charge technical support, see the following article in the Microsoft Knowledge Base:
Q154871 Determining If You Are Eligible for No-Charge Technical Support


STATUS

Microsoft has confirmed this to be a problem in Microsoft Windows NT 4.0.

Additional query words: 


Keywords          : kbtool kbbug4.00 kbfix4.00 
Version           : winnt:3.0
Platform          : winnt 
Issue type        : kbbug

Last Reviewed: August 3, 1999