Exchange 2003 hotfix you need to know (12/1-12/20)

940012 A stub object is left behind in the source database for certain users after a move mailbox operation is complete in Exchange 2003 Service Pack 2

938618 The Cdo.dll file may use up to 100 percent of CPU resources when there are corrupted calendar items on an Exchange 2003 server

941439 The W3wp.exe process uses almost 100 percent of CPU resources when you synchronize large e-mail messages in Exchange 2003 Service Pack 2