Microsoft Office Visio 2003 Connector for the Microsoft Baseline Security Analyzer (MBSA)
At a glance, you'll be able to:
• Pinpoint vulnerabilities on the color-coded diagram
• Identify solutions in the detailed network diagram scan results
• Prioritize actions based on the results presented in the network diagram
http://www.microsoft.com/technet/security/tools/mbsavisio.mspx