An application that uses the Media Archive Service crashes, and then the audio for some recordings is lost after you restart the application

Symptoms

When you run an application that uses the Media Archive Service on a computer that is running Windows Server 2003, Windows Vista, or Windows Server 2008, the application crashes. After you restart the application, the audio for some recordings is lost. For example, you may encounter the problem in the Live Meeting service.

Cause

This problem occurs because of an access violation in the Media Archive Service process. When the output of the encryption is equal to NULL. NULL is an invalid pointer value, the decryption is skipped. In the next cycle, the encryption process and the decryption process go out of sync. Therefore, the decryption process returns an incorrect pointer. When the code in the Media Archive Service process uses the pointer in this scenario, an unhandled exception occurs.

Resolution

Hotfix information for Windows Server 2003

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 Windows Server 2003 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:

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 Windows Server 2003 Service Pack 2 (SP2) to be installed on the computer.

889100 How to obtain the latest service pack for Windows Server 2003

Restart requirement

You do not have to restart the computer after you apply this hotfix. However, if the codec is being used by some processes, you must restart the Live Meeting service.

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 versions) 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 Server 2003 with Service Pack 2, x86 version

File name

File version

File size

Date

Time

SP requirement

Service branch

Mp43dmod.dll

10.0.0.4005

311,808

03- Jun- 2009

17:11

SP2

SP2QFE

Mp4sdmod.dll

10.0.0.4005

385,536

03-Jun- 2009

17:11

SP2

SP2QFE

Mpg4dmod.dll

10.0.0.4005

241,152

03-Jun- 2009

17:11

SP2

SP2QFE

Wmadmod.dll

10.0.0.4005

359,936

03-Jun- 2009

17:11

SP2

SP2QFE

Wmadmoe.dll

10.0.0.4005

716,288

03-Jun- 2009

17:11

SP2

SP2QFE

Wmsdmod.dll

10.0.0.4005

771,584

03-Jun- 2009

17:11

SP2

SP2QFE

Wmsdmoe2.dll

10.0.0.4005

1,120,256

03-Jun- 2009

17:11

SP2

SP2QFE

Wmspdmod.dll

10.0.0.4005

407,040

03-Jun- 2009

17:11

SP2

SP2QFE

Wmspdmoe.dll

10.0.0.4005

940,544

03-Jun- 2009

17:11

SP2

SP2QFE

Wmvadvd.dll

10.0.0.4005

1,215,488

03-Jun- 2009

15:06

SP2

SP2QFE

Wmvadve.dll

10.0.0.4005

1,512,448

03-Jun- 2009

17:11

SP2

SP2QFE

Wmvdmod.dll

10.0.0.4005

826,368

03-Jun- 2009

17:11

SP2

SP2QFE

Wmvdmoe2.dll

10.0.0.4005

1,003,520

03-Jun- 2009

17:11

SP2

SP2QFE


Windows Server 2003 with SP2, X64 version

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Wmp43dmod.dll

10.0.0.4005

311,808

03-Jun- 2009

15:06

x86

SP2

WOW

Wmp4sdmod.dll

10.0.0.4005

3 85,536

03-Jun- 2009

15:06

x86

SP2

WOW

Wmpg4dmod.dll

10.0.0.4005

2 41,152

03-Jun- 2009

15:06

x86

SP2

WOW

Wwmadmod.dll

10.0.0.4005

35 9,936

03-Jun- 2009

15:06

x86

SP2

WOW

Wwmadmoe.dll

10.0.0.4005

71 6,288

03-Jun- 2009

15:06

x86

SP2

WOW

Wwmsdmod.dll

10.0.0.4005

77 1,584

03-Jun- 2009

15:06

x86

SP2

WOW

Wwmsdmoe2.dll

10.0.0.4005

1 ,120,256

03-Jun- 2009

15:06

x86

SP2

WOW

Wwmspdmod.dll

10.0.0.4005

4 07,040

03-Jun- 2009

15:06

x86

SP2

WOW

Wwmspdmoe.dll

10.0.0.4005

9 40,544

03-Jun- 2009

15:06

x86

SP2

WOW

Wwmvadvd.dll

10.0.0.4005

1, 215,488

03-Jun- 2009

15:06

x86

SP2

WOW

Wwmvadve.dll

10.0.0.4005

1, 512,448

03-Jun- 2009

15:06

x86

SP2

WOW

Wwmvdmod.dll

10.0.0.4005

82 6,368

03-Jun- 2009

15:06

x86

SP2

WOW

Wwmvdmoe2.dll

10.0.0.4005

1 ,003,520

03-Jun- 2009

15:06

x86

SP2

WOW

Hotfix information for Windows Vista and for Windows Server 2008

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. This hotfix might 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.

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, contact 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 Web site:

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 Windows Vista Service Pack 2 (SP2) or Windows Server 2008 Service Pack 2 (SP2) to be installed on the computer.

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 versions) 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 Vista Service Pack 2 or Windows Server 2008 Service Pack 2, x86-based versions

File name

File version

File size

Date

Time

Mp43decd.dll

11.0.6002.22202

259,584

18- Aug-2009

10:31

Mp4sdecd.dll

11.0.6002.22202

317,952

18-Aug- 2009

10:31

Mpg4decd.dll

11.0.6002.22202

259,584

18-Aug- 2009

10:31

Wmadmod.dll

11.0.6002.22202

758,784

18-Aug- 2009

12:29

Wmadmoe.dll

11.0.6002.22202

1,118,720

18-Aug- 2009

12:29

Wmspdmod.dll

11.0.6002.22202

604,672

18-Aug- 2009

12:29

Wmspdmoe.dll

11.0.6002.22202

1,329,152

18-Aug- 2009

12:29

Wmvdecod.dll

11.0.6002.22202

1,547,776

18-Aug- 2009

12:29

Wmvencod.dll

11.0.6002.22202

1,575,936

18-Aug- 2009

12:29

Wmvsdecd.dll

11.0.6002.22202

1,382,400

18-Aug- 2009

12:29

Wmvsencd.dll

11.0.6002.22202

767,488

18-Aug- 2009

12:29

Wmvxencd.dll

11.0.6002.22202

657,408

18-Aug- 2009

12:29


Windows Vista Service Pack 2 or Windows Server 2008 Service Pack 2, x64-based versions

File name

File version

File size

Date

Time

Mp43decd.dll

11.0.6002.22202

232,448

18- Aug-2009

12:26

Mp4sdecd.dll

11.0.6002.22202

295,424

18-Aug- 2009

12:26

Mpg4decd.dll

11.0.6002.22202

232,448

18-Aug- 2009

12:26

Wmadmod.dll

11.0.6002.22202

946,176

18-Aug- 2009

12:28

Wmadmoe.dll

11.0.6002.22202

1,128,960

18-Aug- 2009

12:28

Wmspdmod.dll

11.0.6002.22202

818,688

18-Aug- 2009

12:28

Wmspdmoe.dll

11.0.6002.22202

1,351,680

18-Aug- 2009

12:28

Wmvdecod.dll

11.0.6002.22202

1,701,888

18-Aug- 2009

12:28

Wmvencod.dll

11.0.6002.22202

1,891,840

18-Aug- 2009

12:28

Wmvsdecd.dll

11.0.6002.22202

1,543,680

18-Aug- 2009

12:28

Wmvsencd.dll

11.0.6002.22202

731,136

18-Aug- 2009

12:28

Wmvxencd.dll

11.0.6002.22202

622,592

18-Aug- 2009

12:28

More Information

The Media Archive Service process is used for the service-side recording. A service-side recording uses a wrapper to write audio and video packets from Audio Video Multipoint Conferencing Unit (AVMCU) to a file share.

Status

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

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