DOCUMENT:Q235611 08-MAY-2002 [iis] TITLE :IIS 3.0 May Stop Responding to Client Requests PRODUCT :Internet Information Server PROD/VER:winnt:3.0 OPER/SYS: KEYWORDS:kbtool ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Internet Information Server version 3.0 ------------------------------------------------------------------------------- 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 is now available from Microsoft, but it is only intended to correct the problem described in this article and should be applied only to systems experiencing this specific problem. This fix may receive additional testing at a later time, to further ensure product quality. Therefore, if you are not severely affected by this 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 about support costs, please go to the following address on the World Wide Web: http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS NOTE: In special cases, charges that are normally incurred for support calls may be canceled, if a Microsoft Support Professional determines that a specific update will resolve your problem. Normal 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 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 STATUS ====== Microsoft has confirmed this to be a problem in Microsoft Windows NT 4.0. Additional query words: ====================================================================== Keywords : kbtool Technology : kbiisSearch kbiis300 Version : winnt:3.0 Hardware : ALPHA x86 Issue type : kbbug Solution Type : kbfix ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2002.