This .chm file contains management pack alerts and topics for Microsoft Exchange Server 2010 . You can use the procedure topics in the file to help resolve the alerts generated by the Operations Manager Management Pack.
Download it from here: http://www.microsoft.com/downloads/en/details.aspx?FamilyID=e3141f70-3552-4dd6-80ac-97ee9cda8a39
Cheers,
Anderson Patricio
http://blogs.msexchange.org/patricio
Twitter: @apatricio