Note When this issue occurs, you cannot apply Exchange Server 2010 Service Pack 1 (SP1), or apply a rollup update on the server. Therefore, you have to use another user account that does not contain the characters. Use this account to apply Update Rollup 4 for Exchange Server 2010 Service Pack 1 to resolve this issue.
For more information about how to use the Galgrammargenerator.exe program to update the speech grammar files, visit the following Microsoft website:
Article ID: 2489964 - Last Review: Jul 28, 2011 - Revision: 1