What is "Security Accounts Manager" in my Windows XP service list? And how is "Security Accounts Manager" service related to samsrv.dll?

"Security Accounts Manager" is a Windows XP service that "The startup of this service signals other services that the Security Accounts Manager (SAM) is ready to accept requests. Disabling this service will prevent other services in the system from being notified when the SAM is ready, which may in turn cause those services to fail to start correctly. This service should not be disabled." "Security Accounts Manager" service is provided by samsrv.dll DLL file.

Detailed information on "Security Accounts Manager" service:

Service name: SamSs
Display name: Security Accounts Manager
Execution command: C:\Windows\system32\lsass.exe
Start type: Automatic
Service status: Started
Dependencies:
   Remote Procedure Call (RPC)

"Security Accounts Manager" service is provided by a DLL file called: samsrv.dll:

Name: samsrv.dll
Location: C:\Windows\System32\samsrv.dll
Description: SAM Server DLL
File version: 6.1.7601.17514
Size: 538 KB (551,424 bytes)
Modified: Saturday, November 20, 2010, 7:21:04 AM

Disabling "Security Accounts Manager" service may cause issues when running Windows XP system.

⇒"lsass.exe" Services on Windows XP

⇒⇒Windows XP Services Tutorials