September 12, 2007
Microsoft Security Bulletin MS07-054 - Important
Vulnerability in MSN Messenger and Windows Live Messenger Could Allow Remote Code Execution (942099)
MS is forcing users of 6.2 to update to version 7.0 for Win2K and 8.1 for XP/2003 Server/Vista due to the new security vulnerability.
Info:
http://www.microsoft.com/technet/sec.../MS07-054.mspx