TCP/IP NetBIOS Helper - Windows XP Service
Enables support for NetBIOS over TCP/IP (NetBT) service and NetBIOS name resolution.
This service also exists in Windows 10, 11, 7, 8 and Vista.
Startup Type
| Windows XP edition | without SP | SP1 | SP2 | SP3 |
|---|---|---|---|---|
| Home | Automatic | Automatic | Automatic | Automatic |
| Professional | Automatic | Automatic | Automatic | Automatic |
Default Properties
| Display name: | TCP/IP NetBIOS Helper |
| Service name: | LmHosts |
| Type: | share |
| Path: | %WinDir%\system32\svchost.exe -k LocalService |
| File: | %WinDir%\System32\lmhsvc.dll |
| Error control: | normal |
| Group: | TDI |
| Object: | NT AUTHORITY\LocalService |
Default Behavior
The TCP/IP NetBIOS Helper service runs as NT AUTHORITY\LocalService in a shared process. It shares the executable file with other services. If the TCP/IP NetBIOS Helper fails to load or initialize, the error is recorded into the Event Log. Windows XP startup should proceed, but a message box is displayed informing you that the LmHosts service has failed to start.
Dependencies
TCP/IP NetBIOS Helper will not start, if the following services are stopped or disabled:
Restore Default Startup Type of TCP/IP NetBIOS Helper
Automated Restore
1. Select your Windows XP edition and Service Pack, and then click on the Download button below.
2. Save the RestoreTCPIPNetBIOSHelperWindowsXP.bat file to any folder on your hard drive.
3. Run the downloaded batch file.
4. Restart the computer to save changes.
Note. Make sure that the lmhsvc.dll file exists in the %WinDir%\System32 folder. If this file is missing you can try to restore it from your Windows XP installation media.