What is "Link-Layer Topology Discovery Mapper" in my Windows 8 service list? And how is "Link-Layer Topology Discovery Mapper" service related to lltdsvc.dll?

"Link-Layer Topology Discovery Mapper" is a Windows 8 service that creates a Network Map, consisting of PC and device topology (connectivity) information, and metadata describing each PC and device. If this service is disabled, the Network Map will not function properly." "Link-Layer Topology Discovery Mapper" service is provided by lltdsvc.dll DLL file.

Detailed information on "Link-Layer Topology Discovery Mapper" service:

Service name: lltdsvc
Display name: Link-Layer Topology Discovery Mapper
Execution command: C:\Windows\System32\svchost.exe -k LocalService
Start type: Manual
Service status: Stopped
Dependencies:
   Link-Layer Topology Discovery Mapper I/O Dirver
   Remote Procedure Call (RPC)

"Link-Layer Topology Discovery Mapper" service is provided by a DLL file called: lltdsvc.dll:

Name: lltdsvc.dll
Location: C:\Windows\System32\lltdsvc.dll
Description: Link-Layer Topology Mapper Service
File version: 6.2.9200.16384
Size: 268 KB (274,944 bytes)
Modified: Wednesday, ‎July ‎25, ‎2012, ‏‎11:05:59 PM

Disabling "Link-Layer Topology Discovery Mapper" service may cause issues when running Windows 8 system.

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

⇒⇒Windows 8 Services Tutorials