Product: Microsoft Exchange Speech - (en-GB) -- Installation failed.
Windows Installer installed the product. Product Name: Microsoft Exchange Speech - (en-GB) . Product Version: 14.3.123.2. Product Language: 1033. Manufacturer: Microsoft Corporation. Installation success or error status: 1603.
http://www.microsoft.com/en-us/download/details.aspx?id=36769#top
I'm trying to install the following language pack: UMLanguagePack.en-GB.msi. This of course is the Language Pack for Exchange 2010 SP3. But the installation fails with the above error and doesn't even get as far as spawning the usual Exchange 2010 splash window. Usually it would be an executable rather than a Microsoft Installer. Any ideas why he correct UM Language Pack for SP3 is failing?