What is "IPsec Policy Agent" in my Windows XP service list? And how is "IPsec Policy Agent" service related to ipsecsvc.dll?

"IPsec Policy Agent" is a Windows XP service that "Internet Protocol security (IPsec) supports network-level peer authentication, data origin authentication, data integrity, data confidentiality (encryption), and replay protection. This service enforces IPsec policies created through the IP Security Policies snap-in or the command-line tool "netsh ipsec". If you stop this service, you may experience network connectivity issues if your policy requires that connections use IPsec. Also,remote management of Windows Firewall is not available when this service is stopped." "IPsec Policy Agent" service is provided by ipsecsvc.dll DLL file.

Detailed information on "IPsec Policy Agent" service:

Service name: PolicyAgent
Display name: IPsec Policy Agent
Execution command: 
   C:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted
Start type: Manual
Service status: Started
Dependencies:
   Base Filtering Engine
   TCP/IP Protocol Driver

"IPsec Policy Agent" service is provided by a DLL file called: ipsecsvc.dll:

Name: ipsecsvc.dll
Location: C:\Windows\System32\ipsecsvc.dll
Description: Windows IPsec SPD Server DLL
File version: 6.1.7601.17514
Size: 342 KB (350,208 bytes)
Modified: Saturday, November 20, 2010, 7:19:23 AM

Disabling "IPsec Policy Agent" service may cause issues when running Windows XP system.

⇒Other "svchost.exe" Services on Windows XP

⇒⇒Windows XP Services Tutorials