If you have an unwanted domain in your NetBIOS browse list, use Regedt32 to navigate to:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters

Select the OtherDomains value name, a REG_MULTI_SZ data type, and double-click it. In the Multi-String Editor, click the mouse to deselect the items. If the unwanted domain is present, remove it. Exit Regedt32 and restart your computer.

NOTE: See tip 2857 ยป How can a Windows 2000 client support multiple domain browse lists?.