Microsoft has released a hotfix for Lync 2010
Download for 64-bit
This cumulative update fixes the following issues:Download for 32-bit
2551849 Lync 2010 still polls for the conversation history of a non-listed contact
2551847 Lync 2010 still polls for the voice mail of a non-listed contact
2551846 An update is available that adds npMeetingJoinPluginOC.dll and MeetingJoinAxOC.dll files to Lync 2010
2551848 The Office Communicator Object Model API requires calling additional subscription to stop polling subscriptions in a Lync 2010 environment
Download for 64-bit
