What is "Extensible Authentication Protocol" in my Windows 8 service list? And how is "Extensible Authentication Protocol" service related to eapsvc.dll?

"Extensible Authentication Protocol" is a Windows 8 service that provides network authentication in such scenarios as 802.1x wired and wireless, VPN, and Network Access Protection (NAP). EAP also provides application programming interfaces (APIs) that are used by network access clients, including wireless and VPN clients, during the authentication process. If you disable this service, this computer is prevented from accessing networks that require EAP authentication. "Extensible Authentication Protocol" service is provided by eapsvc.dll program file.

Detailed information on "Extensible Authentication Protocol" service:

Service name: Eaphost
Display name: Extensible Authentication Protocol
Execution command: C:\Windows\System32\svchost.exe -k netsvcs
Dependencies: {RPCSS, KeyIso}

"Extensible Authentication Protocol" service is provided by a program called: eapsvc.dll:

Name: eapsvc.dll
Location: C:\Windows\System32\eapsvc.dll
Description: Microsoft EAPHost service
File version: 6.2.9200.16384 (win8_rtm.120725-1247)
Size: 105472 bytes
Modified: 7/26/2012 3:05:34 AM UTC

Disabling "Extensible Authentication Protocol" service may cause issues when running Windows 8 system.

⇒"svchost.exe -k netsvcs" Services on Windows 8

⇒⇒Windows 8 Services Tutorials