Hi prit_79,
Thanks for posting here.
This agent service should be installed by default if we’ve patched the service pack 3 for Windows XP client:
http://blogs.technet.com/b/nap/archive/2008/04/21/xp-nap-client-rtms.aspx
NAP Client Architecture
http://msdn.microsoft.com/en-us/library/windows/desktop/aa369702(v=vs.85).aspx
for more information please refer to the link below:
Verify NAP Client Configuration
http://technet.microsoft.com/en-us/library/cc771010(WS.10).aspx
Thanks.
Tiger Li
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