Here is a healthy dose of KB articles regarding Windows Vista:

http://support.microsoft.com/?kbid=947229
On a Windows Vista-based computer, Windows Firewall applies local program and port exceptions in the private and public profiles even when the Windows Firewall standard profile settings indicate that these exceptions should not be allowed
2/8/2008
Windows Vista

http://support.microsoft.com/?kbid=947208
Remote access clients that are running Windows Vista cannot access Routing and Remote Access Service servers that use IPv6
2/8/2008
Windows Vista

http://support.microsoft.com/?kbid=947234
Registry entries that are useful in network address translation traversal (NAT-T) security associations in Windows Vista
2/6/2008
Windows Vista

http://support.microsoft.com/?kbid=947209
Error message when you try to establish a dial-up VPN connection that uses EAP-TLS for authentication in Windows Vista: "Error: 0x80420100: There was an unknown error"
2/6/2008
Windows Vista

http://support.microsoft.com/?kbid=947017
Client connections do not authenticate successfully with a Cisco switch when it takes more than five seconds to generate an NAP SoH message on a Windows Vista-based computer or on a Windows XP Service Pack 3-based computer
2/5/2008
Windows Vista

http://support.microsoft.com/?kbid=947239
Description of the Receive Window Auto-Tuning feature for HTTP traffic on Windows Vista-based computers
2/4/2008
Windows Vista