When you add ASP.NET counters from a remote server in your performance monitor to monitor Microsoft ASP.NET applications remotely in the Microsoft .NET Framework 2.0, a memory leak occurs in the Regsvc.exe file. The memory leak is caused by the Aspnet_perf.dll file.
Hotfix information
A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only 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 service pack that contains this hotfix.
To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
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.
Prerequisites
You must have the Microsoft .NET Framework 2.0 installed to apply this hotfix.
Restart requirement
You do not have to restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
File information
The English version of this hotfix has the file attributes (or later file attributes) 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
item in Control Panel.
x86-based version
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| File name | File version | File size | Date | Time | Platform |
|---|
| Aspnet_perf.dll | 2.0.50727.992 | 23,552 | 23-Jul-2008 | 6:04 | X86 |
| aspnet.perf_h | na | 6,089 | 23-Jul-2008 | 6:04 | X86 |
| aspnet_state_perf.h | na | 318 | 23-Jul-2008 | 6:04 | X86 |
| aspnet_wp.exe | 2.0.50727.992 | 32,768 | 23-Jul-2008 | 6:04 | X86 |
| webengine.dll | 2.0.50727.992 | 409,088 | 23-Jul-2008 | 6:04 | X86 |
| System.Web.dll | 2.0.50727.992 | 5,144,576 | 23-Jul-2008 | 6:04 | X86 |
x64-based version
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| File name | File version | File size | Date | Time | Platform |
|---|
| Aspnet_perf.dll | 2.0.50727.992 | 32,256 | 22-Jul-2008 | 22:14 | X64 |
| Aspnet_perf.dll | 2.0.50727.992 | 23,552 | 23-Jul-2008 | 6:04 | X86 |
| aspnet_perf.h | na | 6,089 | 22-Jul-2008 | 22:08 | X64 |
| aspnet_perf.h | na | 6,089 | 23-Jul-2008 | 6:04 | X86 |
| aspnet_state_perf.h | na | 318 | 22-Jul-2008 | 22:08 | X64 |
| aspnet_state_perf.h | na | 318 | 23-Jul-2008 | 6:04 | X86 |
| aspnet_wp.exe | 2.0.50727.992 | 44,544 | 23-Jul-2008 | 1:57 | X64 |
| aspnet_wp.exe | 2.0.50727.992 | 32,768 | 23-Jul-2008 | 6:04 | X86 |
| webengine.dll | 2.0.50727.992 | 710,656 | 22-Jul-2008 | 22:14 | X64 |
| webengine.dll | 2.0.50727.992 | 409,088 | 23-Jul-2008 | 6:04 | X86 |
| System.Web.dll | 2.0.50727.992 | 5,091,328 | 23-Jul-2008 | 1:57 | X64 |
| System.Web.dll | 2.0.50727.992 | 5,144,576 | 23-Jul-2008 | 6:04 | X86 |
IA64-based version
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| File name | File version | File size | Date | Time | Platform |
|---|
| Aspnet_perf.dll | 2.0.50727.992 | 73,216 | 22-Jul-200 | 22:23 | IA64 |
| Aspnet_perf.dll | 2.0.50727.992 | 23,552 | 23-Jul-200 | 6:04 | X86 |
| aspnet_perf.h | na | 6,089 | 22-Jul-2008 | 22:15 | IA64 |
| aspnet_perf.h | na | 6,089 | 23-Jul-2008 | 6:04 | X86 |
| aspnet_state_perf.h | na | 318 | 22-Jul-2008 | 22:15 | IA64 |
| aspnet_state_perf.h | na | 318 | 23-Jul-2008 | 6:04 | X86 |
| aspnet_wp.exe | 2.0.50727.992 | 83,456 | 23-Jul-200 | 4:41 | IA64 |
| aspnet_wp.exe | 2.0.50727.992 | 32,768 | 23-Jul-200 | 6:04 | X86 |
| webengine.dll | 2.0.50727.992 | 1,182,720 | 22-Jul-200 | 22:23 | IA64 |
| webengine.dll | 2.0.50727.992 | 409,088 | 23-Jul-200 | 6:04 | X86 |
| System.Web.dll | 2.0.50727.992 | 4,714,496 | 23-Jul-200 | 4:41 | IA64 |
| System.Web.dll | 2.0.50727.992 | 5,144,576 | 23-Jul-200 | 6:04 | X86 |
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.