When you browse the registry or run Srvinfo.exe from the reskit on a server that was upgraded to Windows NT 4.0, old versions of the protocols may be listed.

The following keys were not updated during the upgrade process:

WINS CLIENT (TCP/IP)

    HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\NETBT\CurrentVersion\MajorVersion
    HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\NETBT\CurrentVersion\MinorVersion

NETBEUI Protocol

    HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\NBF\CurrentVersion\MajorVersion
    HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\NBF\CurrentVersion\MinorVersion

NWLink NetBIOS

    HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\NwlnkNB\CurrentVersion\MajorVersion
    HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\NwlnkNB\CurrentVersion\MinorVersion

NWLINK IPX/SPX Compatible Transport

    HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\NwlnkIpx\CurrentVersion\MajorVersion
    HKEY_HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\NwlnkIpx\CurrentVersion\MinorVersion

Use Regedt32.exe to edit:

    MajorVersion    REG_DWORD    4
    MinorVersion    REG_DWORD    0