Microsoft KB Archive/839046

= FIX: A memory leak may occur when COM objects are passed as VARIANT in the Microsoft .NET Framework 1.0 =

Article ID: 839046

Article Last Modified on 6/1/2006

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APPLIES TO


 * Microsoft .NET Framework 1.0

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For a Microsoft Microsoft .NET Framework 1.1 version of this article, see 839047.



SYMPTOMS
When a Component Object Model (COM) object is passed as a parameter in a COM Interop function call, the object will not be released if the parameter is defined as a VARIANT parameter and the function returns a failure HRESULT.



CAUSE
This problem occurs because COM Interop does not correctly clean up the VARIANT parameter if the COM function returns a failure HRESULT.



Software update information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Microsoft .NET Framework 1.0 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone 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 usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

File information
The English version of this software update 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.   Date         Time   Version       Size       File name ---  24-Mar-2004  12:33  1.0.3705.493    200,704  Aspnet_isapi.dll 24-Mar-2004 12:27                    4,169  Aspnet_perf.h   24-Mar-2004  12:33                  513,302  Aspnet_perf.ini 24-Mar-2004 12:33                  510,714  Aspnet_perf2.ini 24-Mar-2004 12:33  1.0.3705.493     24,576  Aspnet_regiis.exe 24-Mar-2004 12:33  1.0.3705.493     28,672  Aspnet_wp.exe 24-Mar-2004 11:53  1.0.3705.493     69,632  Corperfmonext.dll 29-Apr-2003 22:59                   16,597  Installpersistsqlstate.sql 29-Apr-2003 23:00                   17,331  Installsqlstate.sql 12-Aug-2003 17:48                   17,807  Installsqlstatetemplate.sql 24-Mar-2004 11:51  1.0.3705.493    299,008  Mscorjit.dll 26-Mar-2004 01:30  1.0.3705.493  1,953,792  Mscorlib.dll 24-Mar-2004 11:40                   10,284  Mscorlib.ldo 24-Mar-2004 11:53  1.0.3705.493  2,199,552  Mscorsvr.dll 24-Mar-2004 11:52  1.0.3705.493  2,265,088  Mscorwks.dll 24-Mar-2004 12:30  1.0.3705.493     20,480  Perfcounter.dll 01-Aug-2002 21:38                       15  Smartnav.htm 29-Jul-2003 20:30                    8,728  Smartnav.js   26-Mar-2004  01:29  1.0.3705.493  1,179,648  System.data.dll 26-Mar-2004 01:29  1.0.3705.493  1,695,744  System.design.dll 26-Mar-2004 01:29  1.0.3705.493  1,175,552  System.dll 26-Mar-2004 01:29  1.0.3705.493    241,664  System.messaging.dll 26-Mar-2004 01:29  1.0.3705.493    311,296  System.runtime.remoting.dll 26-Mar-2004 01:29  1.0.3705.493    131,072  System.runtime.serialization.formatters.soap.dll 26-Mar-2004 01:30  1.0.3705.493  1,200,128  System.web.dll 26-Mar-2004 01:29  1.0.3705.493    507,904  System.web.services.dll 26-Mar-2004 01:29  1.0.3705.493  1,994,752  System.windows.forms.dll 24-Mar-2004 12:39                   16,608  System.windows.forms.ldo 24-Mar-2004 12:34  1.0.3705.493     57,344  System.windows.forms.tlb 26-Mar-2004 01:29  1.0.3705.493  1,302,528  System.xml.dll 26-Mar-2004 01:29  1.0.3705.493     32,768  Tlbimp.exe 08-Jan-2002 20:13                    1,419  Uninstallpersistsqlstate.sql 12-Aug-2003 17:48                    2,119  Uninstallsqlstatetemplate.sql 26-Mar-2004 01:29  1.0.3705.493     65,536  Wsdl.exe



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section of this article.



MORE INFORMATION
For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Keywords: kbbug kbfix kbqfe kbnetframe100presp3fix kbhotfixserver KB839046

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