Citrix CCA
CompTIA A+
MCITP: Enterprise Admin
MCITP: Enterprise Messaging Admin
MCITP: Server Admin
MCSE 2000/2003: Messaging
MCTS: BDD 2007
MCTS: Forefront
MCTS: Hyper-V
MCTS: LCS 2005
MCTS: MDOP
MCTS: OCS 2007
MCTS: OCS 2007 - Voice Specialization
MCTS: Win Mobile 5
Microsoft MVP
Exchange:
Matt Wade's blog
Elan Shudnow's blog
Hotfix Tracker (All products)
Microsoft Hotfix Tracker
OCS:
MS OCS Next Hop Site
OCS 2007 R2 Documentation Collection
Office:
Office Cumulative Updates Site
Windows:
MS Springboard for IT Pros
Other:
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XsX shadowed cursors