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

S’applique à : Windows Server 2008Windows VistaMicrosoft Windows Server 2003

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: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

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 nameFile versionFile sizeDateTimeSP requirementService branch
Mp43dmod.dll10.0.0.4005311,80803- Jun- 200917:11SP2SP2QFE
Mp4sdmod.dll10.0.0.4005385,53603-Jun- 200917:11SP2SP2QFE
Mpg4dmod.dll10.0.0.4005241,15203-Jun- 200917:11SP2SP2QFE
Wmadmod.dll10.0.0.4005359,93603-Jun- 200917:11SP2SP2QFE
Wmadmoe.dll10.0.0.4005716,28803-Jun- 200917:11SP2SP2QFE
Wmsdmod.dll10.0.0.4005771,58403-Jun- 200917:11SP2SP2QFE
Wmsdmoe2.dll10.0.0.40051,120,25603-Jun- 200917:11SP2SP2QFE
Wmspdmod.dll10.0.0.4005407,04003-Jun- 200917:11SP2SP2QFE
Wmspdmoe.dll10.0.0.4005940,54403-Jun- 200917:11SP2SP2QFE
Wmvadvd.dll10.0.0.40051,215,48803-Jun- 200915:06SP2SP2QFE
Wmvadve.dll10.0.0.40051,512,44803-Jun- 200917:11SP2SP2QFE
Wmvdmod.dll10.0.0.4005826,36803-Jun- 200917:11SP2SP2QFE
Wmvdmoe2.dll10.0.0.40051,003,52003-Jun- 200917:11SP2SP2QFE

Windows Server 2003 with SP2, X64 version
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Wmp43dmod.dll10.0.0.4005311,80803-Jun- 200915:06x86SP2WOW
Wmp4sdmod.dll10.0.0.40053 85,53603-Jun- 200915:06x86SP2WOW
Wmpg4dmod.dll10.0.0.40052 41,15203-Jun- 200915:06x86SP2WOW
Wwmadmod.dll10.0.0.400535 9,93603-Jun- 200915:06x86SP2WOW
Wwmadmoe.dll10.0.0.400571 6,28803-Jun- 200915:06x86SP2WOW
Wwmsdmod.dll10.0.0.400577 1,58403-Jun- 200915:06x86SP2WOW
Wwmsdmoe2.dll10.0.0.40051 ,120,25603-Jun- 200915:06x86SP2WOW
Wwmspdmod.dll10.0.0.40054 07,04003-Jun- 200915:06x86SP2WOW
Wwmspdmoe.dll10.0.0.40059 40,54403-Jun- 200915:06x86SP2WOW
Wwmvadvd.dll10.0.0.40051, 215,48803-Jun- 200915:06x86SP2WOW
Wwmvadve.dll10.0.0.40051, 512,44803-Jun- 200915:06x86SP2WOW
Wwmvdmod.dll10.0.0.400582 6,36803-Jun- 200915:06x86SP2WOW
Wwmvdmoe2.dll10.0.0.40051 ,003,52003-Jun- 200915:06x86SP2WOW

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: Note 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 nameFile versionFile sizeDateTime
Mp43decd.dll11.0.6002.22202259,58418- Aug-200910:31
Mp4sdecd.dll11.0.6002.22202317,95218-Aug- 200910:31
Mpg4decd.dll11.0.6002.22202259,58418-Aug- 200910:31
Wmadmod.dll11.0.6002.22202758,78418-Aug- 200912:29
Wmadmoe.dll11.0.6002.222021,118,72018-Aug- 200912:29
Wmspdmod.dll11.0.6002.22202604,67218-Aug- 200912:29
Wmspdmoe.dll11.0.6002.222021,329,15218-Aug- 200912:29
Wmvdecod.dll11.0.6002.222021,547,77618-Aug- 200912:29
Wmvencod.dll11.0.6002.222021,575,93618-Aug- 200912:29
Wmvsdecd.dll11.0.6002.222021,382,40018-Aug- 200912:29
Wmvsencd.dll11.0.6002.22202767,48818-Aug- 200912:29
Wmvxencd.dll11.0.6002.22202657,40818-Aug- 200912:29

Windows Vista Service Pack 2 or Windows Server 2008 Service Pack 2, x64-based versions
File nameFile versionFile sizeDateTime
Mp43decd.dll11.0.6002.22202232,44818- Aug-200912:26
Mp4sdecd.dll11.0.6002.22202295,42418-Aug- 200912:26
Mpg4decd.dll11.0.6002.22202232,44818-Aug- 200912:26
Wmadmod.dll11.0.6002.22202946,17618-Aug- 200912:28
Wmadmoe.dll11.0.6002.222021,128,96018-Aug- 200912:28
Wmspdmod.dll11.0.6002.22202818,68818-Aug- 200912:28
Wmspdmoe.dll11.0.6002.222021,351,68018-Aug- 200912:28
Wmvdecod.dll11.0.6002.222021,701,88818-Aug- 200912:28
Wmvencod.dll11.0.6002.222021,891,84018-Aug- 200912:28
Wmvsdecd.dll11.0.6002.222021,543,68018-Aug- 200912:28
Wmvsencd.dll11.0.6002.22202731,13618-Aug- 200912:28
Wmvxencd.dll11.0.6002.22202622,59218-Aug- 200912:28

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.