What is "Application Identity" in my Windows 7 service list? And how is "Application Identity" service related to AppIDSvc.dll?

"Application Identity" is a Windows 7 service that "Determines and verifies the identity of an application. Disabling this service will prevent AppLocker from being enforced." "Application Identity" service is provided by AppIDSvc.dll DLL file.

Detailed information on "Application Identity" service:

Service name: AppIDSvc
Display name: Application Identity
Execution command: C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
Start type: Manual
Service status: Stopped
Dependencies:
   AppID Driver
   Cryptographic Services
   Remote Procedure Call (RPC)

"Application Identity" service is provided by a DLL file called: AppIDSvc.dll:

Name: AppIDSvc.dll
Location: C:\Windows\System32\AppIDSvc.dll
Description: Application Identity Service
File version: 6.1.7600.16385
Size: 27.0 KB (27,648 bytes)
Modified: Monday, July 13, 2009, 9:14:53 PM
Product name: Microsoft Windows Operating System

Disabling "Application Identity" service may causing issues when running Windows applications.

⇒ "Function Discovery Resource Publication - FDResPub.dll" Service on Windows 7

⇐ "Adaptive Brightness - sensrsvc.dll" Service on Windows 7

⇑ 'svchost.exe -k LocalServiceAndNoImpersonation" Services on Windows 7

⇑⇑ Windows 7 Services Tutorials