ASP May Leak Memory in Response.CacheControl Method

ID: Q224190

The information in this article applies to:

Microsoft Internet Information Server version 4.0

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/

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://www.microsoft.com/support/supportnet/overview/overview.asp

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 : kbbug4.00 kbfix4.00 nt4sp5fix
Version : winnt:4.0
Platform : winnt
Issue type : kbbug