The Microsoft Exchange Unified Messaging service failed to initialize because an exception occurred when it attempted to ...

The Microsoft Exchange Unified Messaging service failed to initialize because an exception occurred when it attempted to load the MSExchangeUM.config or finite state machine (FSM) files. To resolve this error, replace the MSExchangeUM.config file or the FSM files with the default files located on the Exchange Server 2010 DVD. More information: "%1".