Update Rollup 3 for Exchange 2010 SP1 and Exchange 2007 SP3

Update Rollup 3 for Exchange 2010 SP1 and Exchange 2007 SP3

• Update Rollup 3 for Exchange Server 2010 Service Pack 1 (V2)
  
• Update Rollup 3 for Exchange Server 2007 Service Pack 3 (V2)

Source : http://blogs.technet.com/b/exchange/archive/2011/03/08/3412103.aspx