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.
|Windows 7 edition||without SP||SP1|
|Display name:||Link-Layer Topology Discovery Mapper|
|Path:||%WinDir%\System32\svchost.exe -k LocalService|
The Link-Layer Topology Discovery Mapper service runs as NT AUTHORITY\LocalService in a shared process. It shares an executable file with other services. If the Link-Layer Topology Discovery Mapper fails to load or initialize, the error is recorded into the Event Log. Windows 7 startup should proceed, but a message box is displayed informing you that the lltdsvc service has failed to start.
Link-Layer Topology Discovery Mapper will not start, if the following services are stopped or disabled:
1. Select your Windows 7 edition and Service Pack, and then click on the Download button below.
2. Save the RestoreLinkLayerTopologyDiscoveryMapperWindows7.bat file to any folder on your hard drive.
3. Right-click the downloaded batch file and select Run as administrator.
4. Restart the computer to save changes.
Note. Make sure that the
lltdsvc.dll file exists in the
%WinDir%\System32 folder. If this file is missing you can try to restore it from your Windows 7 installation media.