What is "IKE and AuthIP IPsec Keying Modules" in my Windows Server 2008 service list? And how is "IKE and AuthIP IPsec Keying Modules" service related to IKEEXT.DLL?

"IKE and AuthIP IPsec Keying Modules" is a Windows Server 2008 service that "The IKEEXT service hosts the Internet Key Exchange (IKE) and Authenticated Internet Protocol (AuthIP) keying modules. These keying modules are used for authentication and key exchange in Internet Protocol security (IPsec). Stopping or disabling the IKEEXT service will disable IKE and AuthIP key exchange with peer computers. IPsec is typically configured to use IKE or AuthIP; therefore, stopping or disabling the IKEEXT service might result in an IPsec failure and might compromise the security of the system. It is strongly recommended that you have the IKEEXT service running." "IKE and AuthIP IPsec Keying Modules" service is provided by IKEEXT.DLL DLL file.

Detailed information on "IKE and AuthIP IPsec Keying Modules" service:

Service name: IKEEXT
Display name: IKE and AuthIP IPsec Keying Modules
Execution command: C:\Windows\system32\svchost.exe -k netsvcs
Start type: Manual
Service status: Stopped
Dependencies:
   Base Filtering Engine

"IKE and AuthIP IPsec Keying Modules" service is provided by the svchost.exe program, see "svchost.exe Executable Program on Windows Server 2008" for details.

Disabling "IKE and AuthIP IPsec Keying Modules" service may cause issues when running Windows Server 2008 system.

⇒List of Services on Windows Server 2008

⇒⇒Windows Server 2008 Tutorials