hotfixJust a quick heads up on a new KB article we published today:

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Symptom

After upgrading a Microsoft Application Virtualization (App-V) 4.6 client to App-V 4.6 Service Pack 1 (SP1), applications may fail to launch with the following error:

The Application Virtualization Client could not launch the application you requested.

An unexpected error occurred. Report the following error code to your

System Administrator.Error code 461758B-0F801904-00000A04

The SFTLog.txt may also have entries similar to the following:

[09/22/2011 13:11:42:814 TRAY ERR] {tid=101:usr=administrator}
The Application Virtualization Client could not launch the application you requested.

An unexpected error occurred. Report the following error code to your System Administrator.

Error code: 461758B-0F801904-00000A04

Cause

This may happen if the DDELaunchMSICommand or LaunchMSICommand registry values under the following keys are incorrect:

For 32-bit systems: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SoftGrid\4.5\Client\UserInterface

For 64-bit systems: HKEY_LOCAL_MACHINE\SOFTWARE\wow64node\Microsoft\SoftGrid\4.5\Client\UserInterface

Resolution

To resolve this issue, edit the registry key to reflect the correct execution string.

For 32-bit clients, edit HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SoftGrid\4.5\Client\UserInterface. For 64-bit clients, use HKEY_LOCAL_MACHINE\SOFTWARE\wow64node\Microsoft\SoftGrid\4.5\Client\UserInterface.

Note that Configuration Manager clients use a different string than App-V clients. If in doubt, check the value of DDELaunchCommand. If it references VappLauncher.exe, Configuration Manager integration is enabled. If it references sfttray.exe, the client is an App-V VAS client.

The correct values are:

Configuration Manager 2007 clients with virtualization support enabled:

Value: DDELaunchMSICommand
Type: REG_SZ
Data: @GcbJDuU`8Dt4ql_+RSRVirtualApp>=T+i$+PP-9,9v}Si8@4X /launch "<APP>"
Value: LaunchMSICommand
Type: REG_SZ
Data: @GcbJDuU`8Dt4ql_+RSRVirtualApp>=T+i$+PP-9,9v}Si8@4X /launch "<APP>"

App-V VAS clients:

Value: DDELaunchMSICommand
Type: REG_SZ
Data: 3OqYobt01?4VH[gf8qiBRelease_Merge_Modules>OO5hSGuIH?xoVn&wQ(Ex "<APP>" <DDE>
Value: LaunchMSICommand
Type: REG_SZ
Data: 3OqYobt01?4VH[gf8qiBRelease_Windows_Desktops>gNkKPt-'NA05f@sdSnKH /launch "<APP>"
More Information

This is a .reg file exported from an ConfigMgr client:

 

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\SoftGrid\4.5\Client\UserInterface]
"AppIcon"="C:\\Program Files (x86)\\Microsoft Application Virtualization Client\\sftcmcres.dll,-484"
"TypeIcon"="C:\\Program Files (x86)\\Microsoft Application Virtualization Client\\sftcmcres.dll,-483"
"DDELaunchMSICommand"="@GcbJDuU`8Dt4ql_+RSRVirtualApp>=T+i$+PP-9,9v}Si8@4X /launch \"<APP>\""
"DDELaunchCommand"="\"C:\\Windows\\CCM\\VappLauncher.exe\" /launch \"<APP>\""
"LaunchCommand"="\"C:\\Windows\\CCM\\VappLauncher.exe\" /launch \"<APP>\""
"LaunchMSICommand"="@GcbJDuU`8Dt4ql_+RSRVirtualApp>=T+i$+PP-9,9v}Si8@4X /launch \"<APP>\""

This is a .reg file exported from a 32-bit 4.6 SP1 VAS client:

 

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SoftGrid\4.5\Client\UserInterface]
"AppIcon"="C:\\Program Files\\Microsoft Application Virtualization Client\\sftcmcres.dll,-484"
"TypeIcon"="C:\\Program Files\\Microsoft Application Virtualization Client\\sftcmcres.dll,-483"
"DDELaunchMSICommand"="3OqYobt01?4VH[gf8qiBRelease_Merge_Modules>OO5hSGuIH?xoVn&wQ(Ex \"<APP>\" <DDE>"
"DDELaunchCommand"="\"C:\\Program Files\\Microsoft Application Virtualization Client\\sftdde.exe\" \"<APP>\" <DDE>"
"LaunchCommand"="\"C:\\Program Files\\Microsoft Application Virtualization Client\\sfttray.exe\" /launch \"<APP>\""
"LaunchMSICommand"="3OqYobt01?4VH[gf8qiBRelease_Windows_Desktops>gNkKPt-'NA05f@sdSnKH /launch \"<APP>\""

Note the difference in syntax due to the escape characters. Note also that the paths to various executables may be different in your environment.

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For the most current version of this article please see the following:

2622617: Applications fail to launch with error 04-00000A04 after App-V 4.6 SP1 upgrade

J.C. Hornbeck | System Center Knowledge Engineer

App-V Team blog: http://blogs.technet.com/appv/
AVIcode Team blog: http://blogs.technet.com/b/avicode
ConfigMgr Support Team blog: http://blogs.technet.com/configurationmgr/
DPM Team blog: http://blogs.technet.com/dpm/
MED-V Team blog: http://blogs.technet.com/medv/
OOB Support Team blog: http://blogs.technet.com/oob/
Opalis Team blog: http://blogs.technet.com/opalis
Orchestrator Support Team blog: http://blogs.technet.com/b/orchestrator/
OpsMgr Support Team blog: http://blogs.technet.com/operationsmgr/
SCMDM Support Team blog: http://blogs.technet.com/mdm/
SCVMM Team blog: http://blogs.technet.com/scvmm
Server App-V Team blog: http://blogs.technet.com/b/serverappv
Service Manager Team blog: http://blogs.technet.com/b/servicemanager
System Center Essentials Team blog: http://blogs.technet.com/b/systemcenteressentials
WSUS Support Team blog: http://blogs.technet.com/sus/

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