Introduction

This article describes hotfix rollup 2926993 that is available for the Microsoft .NET Framework 3.5.1. For more information about the issues that the hotfix rollup resolves, see the "More Information" section.

This hotfix rollup is available for the following operating systems:

  • Windows 7 SP1

  • Windows Server 2008 R2 SP1


Resolution

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix Download Available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website:

http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix Download Available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must have the .NET Framework 3.5.1 installed.

Restart requirement

You have to restart the computer after you apply this hotfix if any affected files are being used. We recommend that you close all .NET Framework-based applications before you apply this hotfix.

Hotfix replacement information

This hotfix package does not replace a previously released hotfix package.


The global 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.

Windows 7 and Windows Server 2008 R2 file information notes

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows 7 and Windows Server 2008 R2" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintaining the state of the updated component. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows 7

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

System.directoryservices.dll

2.0.50727.7052

401,408

26-Jan-2014

22:50

x86

None

Not applicable

System.web.regularexpressions.dll

2.0.50727.7052

98,304

26-Jan-2014

22:50

x86

None

Not applicable

System.dll

2.0.50727.7052

3,198,976

26-Jan-2014

22:50

x86

None

Not applicable

Big5.nlp

Not applicable

66,728

09-Jul-2013

06:04

Not applicable

None

Not applicable

Bopomofo.nlp

Not applicable

82,172

09-Jul-2013

06:04

Not applicable

None

Not applicable

Ksc.nlp

Not applicable

116,756

09-Jul-2013

06:07

Not applicable

None

Not applicable

Mscorlib.dll

2.0.50727.7052

4,554,752

26-Jan-2014

22:50

x86

None

Not applicable

Normidna.nlp

Not applicable

59,342

09-Jul-2013

06:11

Not applicable

None

Not applicable

Normnfc.nlp

Not applicable

45,794

09-Jul-2013

06:11

Not applicable

None

Not applicable

Normnfd.nlp

Not applicable

39,284

09-Jul-2013

06:11

Not applicable

None

Not applicable

Normnfkc.nlp

Not applicable

66,384

09-Jul-2013

06:11

Not applicable

None

Not applicable

Normnfkd.nlp

Not applicable

60,294

09-Jul-2013

06:11

Not applicable

None

Not applicable

Prc.nlp

Not applicable

83,748

09-Jul-2013

06:11

Not applicable

None

Not applicable

Prcp.nlp

Not applicable

83,748

09-Jul-2013

06:11

Not applicable

None

Not applicable

Sortkey.nlp

Not applicable

262,148

09-Jul-2013

06:11

Not applicable

None

Not applicable

Sorttbls.nlp

Not applicable

20,320

09-Jul-2013

06:11

Not applicable

None

Not applicable

Xjis.nlp

Not applicable

28,288

09-Jul-2013

06:13

Not applicable

None

Not applicable

Aspnet_wp.exe

2.0.50727.7052

31,384

26-Jan-2014

22:50

x86

SPN

X86_NETFX-ASP

Mscordacwks.dll

2.0.50727.7052

990,360

26-Jan-2014

22:50

x86

None

Not applicable

Mscorwks.dll

2.0.50727.7052

5,943,960

26-Jan-2014

22:50

x86

None

Not applicable

Sos.dll

2.0.50727.7052

389,768

26-Jan-2014

22:50

x86

None

Not applicable

Webengine.dll

2.0.50727.7052

437,400

26-Jan-2014

22:50

x86

None

Not applicable

System.web.dll

2.0.50727.7052

5,287,936

26-Jan-2014

22:50

x86

None

Not applicable

For all supported x64-based versions of Windows Server 2008 R2 and Windows 7

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Big5.nlp

Not applicable

66,728

09-Jul-2013

05:53

Not applicable

None

Not applicable

Bopomofo.nlp

Not applicable

82,172

09-Jul-2013

05:53

Not applicable

None

Not applicable

Ksc.nlp

Not applicable

116,756

09-Jul-2013

05:54

Not applicable

None

Not applicable

Mscorlib.dll

2.0.50727.7052

4,571,136

26-Jan-2014

22:51

x64

None

Not applicable

Normidna.nlp

Not applicable

59,342

09-Jul-2013

06:00

Not applicable

None

Not applicable

Normnfc.nlp

Not applicable

45,794

09-Jul-2013

06:00

Not applicable

None

Not applicable

Normnfd.nlp

Not applicable

39,284

09-Jul-2013

06:00

Not applicable

None

Not applicable

Normnfkc.nlp

Not applicable

66,384

09-Jul-2013

06:00

Not applicable

None

Not applicable

Normnfkd.nlp

Not applicable

60,294

09-Jul-2013

06:00

Not applicable

None

Not applicable

Prc.nlp

Not applicable

83,748

09-Jul-2013

06:00

Not applicable

None

Not applicable

Prcp.nlp

Not applicable

83,748

09-Jul-2013

06:00

Not applicable

None

Not applicable

Sortkey.nlp

Not applicable

262,148

09-Jul-2013

06:01

Not applicable

None

Not applicable

Sorttbls.nlp

Not applicable

20,320

09-Jul-2013

06:01

Not applicable

None

Not applicable

Xjis.nlp

Not applicable

28,288

09-Jul-2013

06:05

Not applicable

None

Not applicable

Aspnet_wp.exe

2.0.50727.7052

43,160

26-Jan-2014

22:51

x64

SPN

AMD64_NETFX-ASP

Mscordacwks.dll

2.0.50727.7052

1,757,336

26-Jan-2014

22:51

x64

None

Not applicable

Mscorwks.dll

2.0.50727.7052

10,007,192

26-Jan-2014

22:51

x64

None

Not applicable

Sos.dll

2.0.50727.7052

486,024

26-Jan-2014

22:51

x64

None

Not applicable

System.directoryservices.dll

2.0.50727.7052

401,408

26-Jan-2014

22:51

x86

None

Not applicable

System.web.regularexpressions.dll

2.0.50727.7052

98,304

26-Jan-2014

22:51

x86

None

Not applicable

System.dll

2.0.50727.7052

3,198,976

26-Jan-2014

22:51

x86

None

Not applicable

Webengine.dll

2.0.50727.7052

746,648

26-Jan-2014

22:51

x64

None

Not applicable

System.web.dll

2.0.50727.7052

5,296,128

26-Jan-2014

22:51

x64

None

Not applicable

System.directoryservices.dll

2.0.50727.7052

401,408

26-Jan-2014

22:50

x86

None

Not applicable

System.web.regularexpressions.dll

2.0.50727.7052

98,304

26-Jan-2014

22:50

x86

None

Not applicable

System.dll

2.0.50727.7052

3,198,976

26-Jan-2014

22:50

x86

None

Not applicable

Big5.nlp

Not applicable

66,728

09-Jul-2013

06:04

Not applicable

None

Not applicable

Bopomofo.nlp

Not applicable

82,172

09-Jul-2013

06:04

Not applicable

None

Not applicable

Ksc.nlp

Not applicable

116,756

09-Jul-2013

06:07

Not applicable

None

Not applicable

Mscorlib.dll

2.0.50727.7052

4,554,752

26-Jan-2014

22:50

x86

None

Not applicable

Normidna.nlp

Not applicable

59,342

09-Jul-2013

06:11

Not applicable

None

Not applicable

Normnfc.nlp

Not applicable

45,794

09-Jul-2013

06:11

Not applicable

None

Not applicable

Normnfd.nlp

Not applicable

39,284

09-Jul-2013

06:11

Not applicable

None

Not applicable

Normnfkc.nlp

Not applicable

66,384

09-Jul-2013

06:11

Not applicable

None

Not applicable

Normnfkd.nlp

Not applicable

60,294

09-Jul-2013

06:11

Not applicable

None

Not applicable

Prc.nlp

Not applicable

83,748

09-Jul-2013

06:11

Not applicable

None

Not applicable

Prcp.nlp

Not applicable

83,748

09-Jul-2013

06:11

Not applicable

None

Not applicable

Sortkey.nlp

Not applicable

262,148

09-Jul-2013

06:11

Not applicable

None

Not applicable

Sorttbls.nlp

Not applicable

20,320

09-Jul-2013

06:11

Not applicable

None

Not applicable

Xjis.nlp

Not applicable

28,288

09-Jul-2013

06:13

Not applicable

None

Not applicable

Aspnet_wp.exe

2.0.50727.7052

31,384

26-Jan-2014

22:50

x86

SPN

X86_NETFX-ASP

Mscordacwks.dll

2.0.50727.7052

990,360

26-Jan-2014

22:50

x86

None

Not applicable

Mscorwks.dll

2.0.50727.7052

5,943,960

26-Jan-2014

22:50

x86

None

Not applicable

Sos.dll

2.0.50727.7052

389,768

26-Jan-2014

22:50

x86

None

Not applicable

Webengine.dll

2.0.50727.7052

437,400

26-Jan-2014

22:50

x86

None

Not applicable

System.web.dll

2.0.50727.7052

5,287,936

26-Jan-2014

22:50

x86

None

Not applicable

For all supported IA64-based versions of Windows Server 2008 R2 and Windows 7

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Big5.nlp

Not applicable

66,728

09-Jul-2013

06:15

Not applicable

None

Not applicable

Bopomofo.nlp

Not applicable

82,172

09-Jul-2013

06:15

Not applicable

None

Not applicable

Ksc.nlp

Not applicable

116,756

09-Jul-2013

06:15

Not applicable

None

Not applicable

Mscorlib.dll

2.0.50727.7052

4,014,080

26-Jan-2014

22:48

IA-64

None

Not applicable

Normidna.nlp

Not applicable

59,342

09-Jul-2013

06:16

Not applicable

None

Not applicable

Normnfc.nlp

Not applicable

45,794

09-Jul-2013

06:16

Not applicable

None

Not applicable

Normnfd.nlp

Not applicable

39,284

09-Jul-2013

06:16

Not applicable

None

Not applicable

Normnfkc.nlp

Not applicable

66,384

09-Jul-2013

06:16

Not applicable

None

Not applicable

Normnfkd.nlp

Not applicable

60,294

09-Jul-2013

06:16

Not applicable

None

Not applicable

Prc.nlp

Not applicable

83,748

09-Jul-2013

06:16

Not applicable

None

Not applicable

Prcp.nlp

Not applicable

83,748

09-Jul-2013

06:16

Not applicable

None

Not applicable

Sortkey.nlp

Not applicable

262,148

09-Jul-2013

06:16

Not applicable

None

Not applicable

Sorttbls.nlp

Not applicable

20,320

09-Jul-2013

06:16

Not applicable

None

Not applicable

Xjis.nlp

Not applicable

28,288

09-Jul-2013

06:17

Not applicable

None

Not applicable

Aspnet_wp.exe

2.0.50727.7052

83,096

26-Jan-2014

22:48

IA-64

SPN

IA64_NETFX-ASP

Mscordacwks.dll

2.0.50727.7052

3,083,416

26-Jan-2014

22:48

IA-64

None

Not applicable

Mscorwks.dll

2.0.50727.7052

20,397,208

26-Jan-2014

22:48

IA-64

None

Not applicable

Sos.dll

2.0.50727.7052

873,608

26-Jan-2014

22:48

IA-64

None

Not applicable

System.directoryservices.dll

2.0.50727.7052

401,408

26-Jan-2014

22:48

x86

None

Not applicable

System.web.regularexpressions.dll

2.0.50727.7052

98,304

26-Jan-2014

22:48

x86

None

Not applicable

System.dll

2.0.50727.7052

3,198,976

26-Jan-2014

22:48

x86

None

Not applicable

Webengine.dll

2.0.50727.7052

1,233,560

26-Jan-2014

22:48

IA-64

None

Not applicable

System.web.dll

2.0.50727.7052

4,816,896

26-Jan-2014

22:48

IA-64

None

Not applicable

System.directoryservices.dll

2.0.50727.7052

401,408

26-Jan-2014

22:50

x86

None

Not applicable

System.web.regularexpressions.dll

2.0.50727.7052

98,304

26-Jan-2014

22:50

x86

None

Not applicable

System.dll

2.0.50727.7052

3,198,976

26-Jan-2014

22:50

x86

None

Not applicable

Big5.nlp

Not applicable

66,728

09-Jul-2013

06:04

Not applicable

None

Not applicable

Bopomofo.nlp

Not applicable

82,172

09-Jul-2013

06:04

Not applicable

None

Not applicable

Ksc.nlp

Not applicable

116,756

09-Jul-2013

06:07

Not applicable

None

Not applicable

Mscorlib.dll

2.0.50727.7052

4,554,752

26-Jan-2014

22:50

x86

None

Not applicable

Normidna.nlp

Not applicable

59,342

09-Jul-2013

06:11

Not applicable

None

Not applicable

Normnfc.nlp

Not applicable

45,794

09-Jul-2013

06:11

Not applicable

None

Not applicable

Normnfd.nlp

Not applicable

39,284

09-Jul-2013

06:11

Not applicable

None

Not applicable

Normnfkc.nlp

Not applicable

66,384

09-Jul-2013

06:11

Not applicable

None

Not applicable

Normnfkd.nlp

Not applicable

60,294

09-Jul-2013

06:11

Not applicable

None

Not applicable

Prc.nlp

Not applicable

83,748

09-Jul-2013

06:11

Not applicable

None

Not applicable

Prcp.nlp

Not applicable

83,748

09-Jul-2013

06:11

Not applicable

None

Not applicable

Sortkey.nlp

Not applicable

262,148

09-Jul-2013

06:11

Not applicable

None

Not applicable

Sorttbls.nlp

Not applicable

20,320

09-Jul-2013

06:11

Not applicable

None

Not applicable

Xjis.nlp

Not applicable

28,288

09-Jul-2013

06:13

Not applicable

None

Not applicable

Aspnet_wp.exe

2.0.50727.7052

31,384

26-Jan-2014

22:50

x86

SPN

X86_NETFX-ASP

Mscordacwks.dll

2.0.50727.7052

990,360

26-Jan-2014

22:50

x86

None

Not applicable

Mscorwks.dll

2.0.50727.7052

5,943,960

26-Jan-2014

22:50

x86

None

Not applicable

Sos.dll

2.0.50727.7052

389,768

26-Jan-2014

22:50

x86

None

Not applicable

Webengine.dll

2.0.50727.7052

437,400

26-Jan-2014

22:50

x86

None

Not applicable

System.web.dll

2.0.50727.7052

5,287,936

26-Jan-2014

22:50

x86

None

Not applicable



Issues that this hotfix rollup resolves

Issue 1ASP.NET applications that access additional functionality by using the application configuration settings can experience a deadlock at startup.



Issue 2The .NET Framework 3.5.1 applications that are running on single core computers can freeze in GC code.

Issue 3The w3wp.exe process crashes with an exception when System.Web.Util.ResourcePool.Finalize() is called.

Issue 4ASP.NET applications that access additional functionality by using the application configuration settings can experience a deadlock at startup.

Issue 5The .NET Framework 2.0 and 3.5 applications will throw a NullReferenceException exception when they use GetEnvironmentVariable if the registry key does not exist.

Issue 6DirectorySearcher.FindOne() may throw overflow exceptions when it runs as a 32-bit process that is linked with the LARGEADDRESSAWARE compiler flag and runs on a 64-bit operating system that is configured to use 3 gigabytes (GB) of memory. Applications hosted inside IIS may see this exception when w3wp.exe is compiled as a LARGEADDRESSAWARE application.

This fix makes sure that memory addresses larger than 2 GB are handled correctly.

Issue 7When an update is being installed, Fusion can access a state in which NGEN is called repeatedly. This causes entries in the following registry keys keep growing until the computer freezes:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v2.0.50727\NGenService\Roots
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Fusion\NativeImagesIndex

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 software update terminology, 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

Additional file information

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