ASP Request.BinaryRead Method Causes 100 Percent CPU Utilization

ID: Q218880

The information in this article applies to:

SYMPTOMS

When you try to upload a large file to an IIS computer from a browser using the ASP Request.BinaryRead method, and you click the Stop button on the client browser, the CPU utilization on the IIS computer will go to 100 percent.


CAUSE

The ASP engine does not properly handle when the client shuts down the connection in the middle of the Request.BinaryRead call.


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 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                 Size    File Name     Platform
   -------------------------------------------------------------
   06/23/99  04:22p               328,512 asp.dll       (x86)
   06/23/99  04:20p                43,456 coadmin.dll   (x86)
   06/23/99  04:21p                11,168 ftpctrs2.dll  (x86)
   06/23/99  04:21p                81,888 ftpsvc2.dll   (x86)
   06/23/99  03:31p                11,396 httpext.h     (x86)
   06/23/99  04:21p                17,424 iisadmin.dll  (x86)
   06/23/99  04:20p                62,960 iislog.dll    (x86)
   06/23/99  04:20p                16,848 infoadmn.dll  (x86)
   06/23/99  04:20p               184,720 infocomm.dll  (x86)
   06/23/99  04:20p                29,520 iscomlog.dll  (x86)
   06/23/99  04:21p                11,248 iwrps.dll     (x86)
   06/23/99  04:20p                71,232 metadata.dll  (x86)
   06/23/99  04:21p                51,296 nsepm.dll     (x86)
   06/23/99  04:21p                14,752 w3ctrs.dll    (x86)
   06/23/99  04:21p               227,936 w3svc.dll     (x86)
   06/23/99  04:21p                87,504 wam.dll       (x86)

   06/23/99  04:23p               549,136 asp.dll       (Alpha)
   06/23/99  04:21p                77,072 coadmin.dll   (Alpha)
   06/23/99  04:22p                17,168 ftpctrs2.dll  (Alpha)
   06/23/99  04:22p               126,736 ftpsvc2.dll   (Alpha)
   06/23/99  03:35p                11,396 httpext.h     (Alpha)
   06/23/99  04:22p                28,432 iisadmin.dll  (Alpha)
   06/23/99  04:21p               112,400 iislog.dll    (Alpha)
   06/23/99  04:21p                25,872 infoadmn.dll  (Alpha)
   06/23/99  04:21p               303,376 infocomm.dll  (Alpha)
   06/23/99  04:21p                45,840 iscomlog.dll  (Alpha)
   06/23/99  04:22p                16,656 iwrps.dll     (Alpha)
   06/23/99  04:21p               131,856 metadata.dll  (Alpha)
   06/23/99  04:22p                87,824 nsepm.dll     (Alpha)
   06/23/99  04:22p                21,264 w3ctrs.dll    (Alpha)
   06/23/99  04:22p               382,736 w3svc.dll     (Alpha)
   06/23/99  04:22p               149,264 wam.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, a fee may be charged. This fee is refundable if it is determined that you only require the fix you requested. However, this fee is non-refundable if you request additional technical support, if your no-charge technical support period has expired, or if you are not eligible for standard no-charge technical support.

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 Internet Information Server version 4.0.


MORE INFORMATION

IMPORTANT Service Pack 4 is required to install this fix.

Additional query words: 4.00 iiswww iisscript 


Keywords          : kbbug4.00 kbfix4.00 
Version           : winnt:4.0
Platform          : winnt 
Issue type        : kbbug

Last Reviewed: July 20, 1999