TCP/IP NetBIOS Helper - LMHSVC.DLL
Lmhsvc.dll is a service provided by Microsoft as part of your Windows operating system. It enables support for NetBIOS over TCP/IP (NetBT) service and NetBIOS name resolution. By default, this service is set to Automatic in Windows XP Home and Pro. While it's rarely needed these days, we'd recommend leaving it alone unless it's causing your problems.

A description of services that run under svchost in Windows XP can be found at http://support.microsoft.com/default.aspx?scid=kb;en-us;314056.

A description of default services running under Winodws can be found at http://support.microsoft.com/default.aspx?scid=kb;en-us;Q250320.

Service

Microsoft