FIX: Access violation may occur when you run a .NET Framework 2.0 SP2-based application that calls a mixed assembly that is domain-neutral

Symptoms

When you run a Microsoft .NET Framework 2.0-based application that calls a mixed assembly that is domain-neutral, an access violation error may occur. This error may cause some other issues. For example, this access violation error may cause the following issues:

  • If you have installed the Hub Transport Server Role or Edge Transport Server Role of Microsoft Exchange Server, the Exchange Transport service cannot start and you receive the following error message:

    Module load completed but symbols could not be loaded for Microsoft.Exchange.Rpc.ni.dll

  • Some commands cannot be executed successfully in a client application that runs Exchange cmdlets in the Windows PowerShell prompt.

Cause

This issue is caused by a race condition that occurs when the assembly is loaded by multiple threads in multiple application domains. In this case, the common language runtime (CLR) only partially loads the assembly and does not fully initialize the types in the assembly. Therefore, when a process accesses the uninitialized part of the assembly, an access violation occurs.

Resolution

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 software update 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:

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.

Prerequisites

To apply this hotfix, you must have the .NET Framework 3.5 Service Pack 1 (SP1) installed on one of the following operating systems:

  • Windows Vista SP2

  • Windows Server 2008 SP2

Note The .NET Framework 2.0 SP2 is included in the .NET Framework 3.5 SP1.

Restart requirement

Before you apply this hotfix, we recommend that you exit all instances of Visual Studio and all .NET Framework-based applications. You do not have to restart the computer after you apply the hotfix if the affected files are not being used.

Hotfix replacement information

This hotfix does not replace any other hotfix.

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.


File information for all supported x86-based versions of Windows Vista SP2 and of Windows Server 2008 SP2

File name

File version

File size

Date

Time

Platform

Mscorlib.dll

2.0.50727.5651

4,550,656

03-Feb- 2011

10:55

x86

Mscordacwks.dll

2.0.50727.5651

989,528

03-Feb- 2011

10:54

x86

Mscorwks.dll

2.0.50727.5651

5,924,176

03-Feb- 2011

10:55

x86

Sos.dll

2.0.50727.5651

388,936

03-Feb- 2011

10:55

x86

File information for all supported x64-based versions of Windows Vista SP2 and of Windows Server 2008 SP2

File name

File version

File size

Date

Time

Platform

Mscorlib.dll

2.0.50727.5651

4,567,040

03-Feb- 2011

10:53

x64

Mscordacwks.dll

2.0.50727.5651

1,755,480

03-Feb- 2011

10:52

x64

Mscorwks.dll

2.0.50727.5651

9,992,528

03-Feb- 2011

10:53

x64

Sos.dll

2.0.50727.5651

485,192

03-Feb- 2011

10:54

x64

File information for all supported IA-64-based versions of Windows Server 2008 SP2

File name

File version

File size

Date

Time

Platform

Mscorlib.dll

2.0.50727.5651

4,009,984

03-Feb-2011

10:51

IA-64

Mscordacwks.dll

2.0.50727.5651

3,082,584

03-Feb-2011

10:51

IA-64

Mscorwks.dll

2.0.50727.5651

20,341,584

03-Feb-2011

10:51

IA-64

Sos.dll

2.0.50727.5651

872,776

03-Feb-2011

10:51

IA-64

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

For more information about mixed (native and managed) assemblies, visit the following Microsoft Developer Network (MSDN) website:

General information about mixed (native and managed) assembliesFor more information about application domains and assemblies, visit the following MSDN website:

General information about application domains and assembliesFor more information about Exchange Server Roles in Exchange Server 2010, visit the following Microsoft website:

Understand the Exchange Server Roles in Exchange Server 2010

Additional file information

Additional file information for all x86-based versions of Windows Vista Service Pack 2 (SP2) and of Windows Server 2008 SP2


File name

X86_mscorlib_b77a5c561934e089_6.0.6002.22582_none_b0cca9fadb4ceb9e.manifest

File version

Not Applicable

File size

544,632

Date (UTC)

03-Feb-2011

Time (UTC)

19:06

File name

X86_netfx- mscordacwks_b03f5f7f11d50a3a_6.0.6002.22582_none_14379bcf20d55bf6.manifest

File version

Not Applicable

File size

6,241

Date (UTC)

03-Feb-2011

Time (UTC)

19:03

File name

X86_netfx-mscorwks_dll_b03f5f7f11d50a3a_6.0.6002.22582_none_1b7378e848d45023.manifest

File version

Not Applicable

File size

25,247

Date (UTC)

03-Feb-2011

Time (UTC)

19:06

File name

X86_netfx- sos_dll_b03f5f7f11d50a3a_6.0.6002.22582_none_fd05e39014ca380b.manifest

File version

Not Applicable

File size

4,115

Date (UTC)

03-Feb-2011

Time (UTC)

19:02

Additional file information for all x64-based versions of Windows Vista SP2 and Windows Server 2008 SP2


File name

Amd64_mscorlib_b77a5c561934e089_6.0.6002.22582_none_691f7323c6d0c298.manifest

File version

Not Applicable

File size

607,386

Date (UTC)

03-Feb-2011

Time (UTC)

17:04

File name

Amd64_netfx- mscordacwks_b03f5f7f11d50a3a_6.0.6002.22582_none_cc8a64f80c5932f0.manifest

File version

Not Applicable

File size

6,267

Date (UTC)

03-Feb-2011

Time (UTC)

17:02

File name

Amd64_netfx-mscorwks_dll_b03f5f7f11d50a3a_6.0.6002.22582_none_d3c642113458271d.manifest

File version

Not Applicable

File size

24,663

Date (UTC)

03-Feb-2011

Time (UTC)

17:04

File name

Amd64_netfx- sos_dll_b03f5f7f11d50a3a_6.0.6002.22582_none_b558acb9004e0f05.manifest

File version

Not Applicable

File size

4,131

Date (UTC)

03-Feb-2011

Additional file information for all IA-64-based versions of Windows Server 2008 SP2


File name

Ia64_mscorlib_b77a5c561934e089_6.0.6002.22582_none_b0cc87bcdb4d2382.manifest

File version

Not Applicable

File size

607,375

Date (UTC)

03-Feb-2011

Time (UTC)

16:11

File name

Ia64_netfx- mscordacwks_b03f5f7f11d50a3a_6.0.6002.22582_none_1437799120d593da.manifest

File version

Not Applicable

File size

6,257

Date (UTC)

03-Feb-2011

Time (UTC)

16:09

File name

Ia64_netfx-mscorwks_dll_b03f5f7f11d50a3a_6.0.6002.22582_none_1b7356aa48d48807.manifest

File version

Not Applicable

File size

24,611

Date (UTC)

03-Feb-2011

Time (UTC)

16:11

File name

Ia64_netfx- sos_dll_b03f5f7f11d50a3a_6.0.6002.22582_none_fd05c15214ca6fef.manifest

File version

Not Applicable

File size

4,124

Date (UTC)

03-Feb-2011

Need more help?

Expand your skills
Explore Training
Get new features first
Join Microsoft Insiders

Was this information helpful?

Thank you for your feedback!

Thank you for your feedback! It sounds like it might be helpful to connect you to one of our Office support agents.

×