Common Windows Vulnerabilities
- W1 Web Servers and Services 
 
- W2 Workstation Service 
 
- W3 Windows Remote Access Services 
 
- W4 Microsoft SQL Server (MSSQL) 
 
- W5 Windows Authentication 
 
- W6 Web Browsers 
 
- W7 File-Sharing Applications 
 
- W8 LSAS Exposures 
 
- W9 Mail Client 
 
- W10 Instant Messaging 
 
(From the Twenty Most Critical Internet Security Vulnerabilities
2004
Copyright 2001-2004, The SANS Institute
http://www.sans.org/top20.htm)