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Q224190: ASP May Leak Memory in Response.CacheControl Method

Article: Q224190
Product(s): Internet Information Server
Version(s): winnt:4.0
Operating System(s): 
Keyword(s): kbWinNT400sp5fix
Last Modified: 20-MAY-2002

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The information in this article applies to:

- Microsoft Internet Information Server version 4.0 
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SYMPTOMS
========

When you use the ASP Response CacheControl method from an ASP page, ASP may leak
memory.

RESOLUTION
==========

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or
the individual software update. For information on obtaining the latest service
pack, please go to:

- http://www.microsoft.com/Windows/ServicePacks/

-or-

- Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack

For information on obtaining the individual software update, contact Microsoft
Product Support Services. 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://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

This hotfix has been posted to the following Internet location as Fix575i.exe
(x86) and Fix575a.exe (Alpha):

  ftp://ftp.microsoft.com/bussys/IIS/iis-public/fixes/usa/ASP/asp-fix575/


STATUS
======

Microsoft has confirmed this to be a problem in Internet Information Server
version 4.0. This problem was first corrected in Windows NT version 4.0 Service
Pack 5.

MORE INFORMATION
================

To test whether or not your system has this problem, monitor the Inetinfo
process in Performance Monitor. Set up Performance Monitor to monitor the
Inetinfo process using the counters for private bytes. Monitor the Inetinfo
process for a period of time to get a baseline reading, and then create an ASP
file with the following lines:

  Response.Expires = 0
  Response.Cachecontrol = "private"

After you add these lines to the ASP file and then execute the ASP file on the
IIS computer continuously, the private bytes counter will rise accordingly.

Additional query words: 4.00

======================================================================
Keywords          : kbWinNT400sp5fix 
Technology        : kbiisSearch kbiis400
Version           : winnt:4.0
Hardware          : ALPHA x86
Issue type        : kbbug
Solution Type     : kbfix

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