Article ID: 817618 - View products that this article applies to.
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A pinned object is an object that the garbage collector cannot move in memory. In a .NET process, if you perform operations that directly or indirectly pin objects in memory that is managed by the .NET garbage collector, the process can experience sustained memory growth.
To determine if pinning is occurring for a specific process instance, verify the following in Performance Monitor (PerfMon):
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 .NET Framework 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=supportNote 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. The English version of this hotfix 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 -------------------------------------------------------------- 01-May-2003 12:43 1.0.3705.419 196,608 Aspnet_isapi.dll 01-May-2003 12:43 1.0.3705.419 69,632 Corperfmonext.dll 01-May-2003 12:43 1.0.3705.419 303,104 Mscorjit.dll 04-Apr-2003 10:20 1.0.3705.419 1,953,792 Mscorlib.dll 03-Apr-2003 21:30 1.0.3705.419 2,269,184 Mscorsvr.dll 03-Apr-2003 21:30 1.0.3705.419 2,269,184 Mscorwks.dll
The following are operations that may directly or indirectly pin objects in managed memory:
(http://support.microsoft.com/kb/248345/EN-US/ )How to Create a Log Using System Monitor in Windows 2000
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.