Kernel Confusion

Hi folks,

earlier this year we finally stepped forward and configured our Exchange 2010 to utilize Unified Messaging to support us with cool mailboxes and that kind of stuff. In the testing phase I installed the Japanese UM language pack to hear what it’s like. Now, as the server is in a productive environment, I wanted to clean things up and uninstall this pack as it’s not needed.

The TechNet has this to say:

In Microsoft Exchange Server 2010, you can manage UM languages on Unified Messaging servers using the Exchange Management Console or the Exchange Management Shell. However, to remove a language from the list on a UM dial plan, you must remove the appropriate UM language pack from the Unified Messaging server by using the Setup.com /RemoveUmLanguagePack command. After you remove the UM language pack from the Unified Messaging server, the language won’t be available when you configure a UM dial plan. You can view the UM language packs that are installed by viewing the properties of the Unified Messaging server or using the Get-UMServer cmdlet.

At this point you might stop reading the article, as the essential information, the setup.com-command, is quite simple. But when you try to execute this, it will fail like this:

d:\Program Files\Microsoft\Exchange Server\V14\Bin>Setup.com /RemoveUmLanguagePack:ja-JP
Welcome to Microsoft Exchange Server 2010 Unattended Setup
Preparing Exchange Setup
    Copying Setup Files
d:\Program Files\Microsoft\Exchange Server\V14\Bin>

It just quits right there, no error, no logfile and no event at all. Supplying the /s parameter for the language pack source does not help either. Here is the catch: the setup.com on your server is a DIFFERENT from the one on your Exchange 2010 DVD! You have to use the one on the DVD to succeed. This information actually in the TechNet:

If you run it from the DVD, it will look like this:

M:\>Setup.com /RemoveUmLanguagePack:ja-JP
Welcome to Microsoft Exchange Server 2010 Unattended Setup
Preparing Exchange Setup
The following Unified Messaging language packs will be removed:
    UM Language Pack for ja-JP
Performing Microsoft Exchange Server Prerequisite Check

Configuring Microsoft Exchange Server
    UM language pack for (ja-JP)     ......................... COMPLETED
The Microsoft Exchange Server setup operation completed successfully.