To confirm: Proactive Threat Protection and Network Threat Protection supported on server platforms?

Firewall works fine.
PTP still is not as far as I can tell on our machines.

Hello,

ProActive Threat Protection is not Recommended on Server, simply because it will increase chances of False Positives on the server.

Firewall Works fine and so does the Application and Device Control with it.

Incase, if you are carrying Sybase Power Builder Application, please make sure you don't install Application and Device Control (fix is in MR6)

Thats it.

Hope that Answers your Questions.

As far as PTP is concerned check this.

http://service1.symantec.com/SUPPORT/ent-security....

Proactive Threat Protection will not work with server os
ref:Proactive Threat Protection status shows "OFF" in the client interface 
Network Threat Protection will work with server oses but i will recoment you to use this feature only after a throuh test in a test environment since it ia firewall and it can block any type of trafic .You maty have to modify the firewall rules to achive this
fore more information refer Symantec Endpoint Protection 11.0 Network Threat Protection (Firewall) Overview and Best Practices White Paper

Application and device control will work with server os (But not with 64 bit)
https://www-secure.symantec.com/connect/forums/lat...
For more info refer How to configure Application Control in Symantec Endpoint Protection 11.0
Symantec Endpoint Protection Manager - Application and Device Control - Policies explained
RU5 (last relese of SEP 11) is the only version officially supported in Windows 2k8
ref:Release notes for Symantec Endpoint Protection 11.0.x and Symantec Network Access Control 11.0.x

Ptp get sinstalled on server OS but it is allways OFF.
NTP and A&D policy is allways supported on all microsoft operating systems

 Proactive threat Protection has 2 components Proactive Threat Scan and Application and Device Control
on Server OS Proactive Threat Scan Doesn't work.
on 64 bit OS both don't work.

Network Threat Protection ( Firewall + IPS ) is fully functional on Server and 64 bit OS platforms.