You might get the error “Error: CtxComPlusAppUnRegister failed with error code 232″ when installing citrix presentation server 4.5. You will see the following in the servers eventvwr

“Event Type: Error
Event Source: Service Control Manager
Event Category: None
Event ID: 7001

Date: 09/08/2007
Time: 9.51.28
User: N/A
Computer: YourServerName
Description: The Citrix SMA Service depends on the Independent Management Architecture service which failed to start because of the following error:
The dependency service or group failed to start.”

“Event Type: Error
Event Source: Service Control Manager
Event Category: None
Event ID: 7001
Date: 09/08/2007
Time: 9.51.28
User: N/A
Computer: YourServerName
Description: The Citrix Print Manager Service depends on the Print Spooler service which failed to start because of the following error: The service cannot be started, either because it is disabled or because it has no enabled devices associated with it.
After starting, the service hung in a start-pending state.”

“Event Type: Error
Event Source: Service Control Manager
Event Category: None
Event ID: 7024
Date: 09/08/2007
Time: 9.40.23
User: N/A
Computer: YourServerName
Description: The Independent Management Architecture service terminated with service-specific error 2147483649 (0×80000001).”

“Event Type: Error
Event Source: Service Control Manager
Event Category: None
Event ID: 7022
Date: 09/08/2007
Time: 9.51.28
User: N/A
Computer: YourServerName
Description: The Citrix Licensing WMI service hung on starting.”

“Event Type: Error
Event Source: Service Control Manager
Event Category: None
Event ID: 7024
Date: 09/08/2007
Time: 10.00.02
User: N/A
Computer: YourServerName
Description: The MetaFrame COM Server service terminated with service-specific error 2147500037 (0×80004005).”

Event Type: Error
Event Source: Service Control Manager
Event Category: None
Event ID: 7001
Date: 8/25/2009
Time: 2:40:52 PM
User: N/A
Computer: YourserverName
Description:
The COM+ System Application service depends on the COM+ Event System service which failed to start because of the following error:
The service cannot be started, either because it is disabled or because it has no enabled devices associated with it.

You find the following lines in the Microsoft Installer (MSI) log file:

“CtxComPlusAppUnRegister
CtxComPlusAppUnRegister failed with error code 232
Action ended 09:19:25: InstallFinalize. Return value 3.”

The issue is because the Microsoft Distributed Transaction Coordinator (MS DTC) service is stopped, if the service is set to disabled simply set it to automatic and reboot your server and try the install again. Next make sure the COM+ Event System Service is set to automatic and is started.

Refer to Microsoft Knowledge Base article 916926.

After restarting the server, the Windows\System32\Msdtc\Msdtc.log file is created. Now the Presentation Server 4.5 installation should run successfully.

Enable network DTC access.

Ensure the Network COM+ Access component is also installed.

Ensure the COM+ Event System & The COM+ System Application Service is/can be started.