I started to prepare my Exchange 2010 UM server for SP1.
I did these two upgrades Unified Messaging Role Prerequisites
The last area was Unified messaging role this only required 2 updates and no restarts the first update was Unified Communications Managed API 2.0, Core Runtime (64-bit) downloadable from
The final update was Speech Platform Runtime downloadable from
Then I tried to remove my langauge packs. The langauge packs won't remove because the speech engine won't restart. I downloaded the 10.0 version of the SpeechPlatformRuntime but it won't install because it finds a previous version.
In control panel programs I can only see UC Managed API which I also upgraded.
Do I also need to remove this? If so which version do I need to put back for Exchange 2010?