Microsoft KB Archive/813451

= Jsproxy.dll Leaks an Object in the shExpMatch Function =

Article ID: 813451

Article Last Modified on 10/11/2005

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APPLIES TO


 * Microsoft Internet Explorer 6.0 Service Pack 1
 * Microsoft Internet Explorer 5.5 Service Pack 2

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SYMPTOMS
If you use the information in Microsoft Knowledge Base article 271361 to disable the automatic proxy result cache with an Automatic Proxy Configuration file that uses the shExpMatch function, the memory that the Iexplore.exe process uses may increase until the computer becomes unresponsive.

For additional information about disabling the automatic proxy result cache, click the following article number to view the article in the Microsoft Knowledge Base:

271361 How to Disable Internet Explorer Automatic Proxy Caching



CAUSE
Because of a coding error in the shExpMatch function, an object is being allocated and not deleted. This leaks the memory that was allocated for the object every time the function is used.



RESOLUTION
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Internet Explorer 6 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, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical 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 has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

For Internet Explorer 6 Service Pack 1:   Date         Time   Version        Size    File name --  03-Feb-2003  11:31  6.0.2800.1163  12,288  Jsproxy.dll For Internet Explorer 5.5 Service Pack 2:   Date         Time   Version         Size    File name ---  03-Feb-2003  11:50  5.50.4925.2400  13,584  Jsproxy.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

Keywords: kbbug kbfix kbie600presp2fix kbqfe kbie600sp2fix kbhotfixserver KB813451

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