A. NetBIOS names are 16 characters long with the 16th character always being a special character identifying the type of name, for example a domain NetBIOS record with 1C as the 16th character is a domain controller (this is how they are located). The full list is as follows:
Name Number(h) Type Usage
--------------------------------------------------------------------------
<computername> 00 U Workstation Service
<computername> 01 U Messenger Service
<\\--__MSBROWSE__> 01 G Master Browser
<computername> 03 U Messenger Service
<computername> 06 U RAS Server Service
<computername> 1F U NetDDE Service
<computername> 20 U File Server Service
<computername> 21 U RAS Client Service
<computername> 22 U Microsoft Exchange Interchange(MSMail
Connector)
<computername> 23 U Microsoft Exchange Store
<computername> 24 U Microsoft Exchange Directory
<computername> 30 U Modem Sharing Server Service
<computername> 31 U Modem Sharing Client Service
<computername> 43 U SMS Clients Remote Control
<computername> 44 U SMS Administrators Remote Control
Tool
<computername> 45 U SMS Clients Remote Chat
<computername> 46 U SMS Clients Remote Transfer
<computername> 4C U DEC Pathworks TCPIP service on
Windows NT
<computername> 52 U DEC Pathworks TCPIP service on
Windows NT
<computername> 87 U Microsoft Exchange MTA
<computername> 6A U Microsoft Exchange IMC
<computername> BE U Network Monitor Agent
<computername> BF U Network Monitor Application
<username> 03 U Messenger Service
<domain> 00 G Domain Name
<domain> 1B U Domain Master Browser
<domain> 1C G Domain Controllers
<domain> 1D U Master Browser
<domain> 1E G Browser Service Elections
<INet~Services> 1C G IIS
<IS~computer name> 00 U IIS
Where the record is U only one IP address may be assigned, where G its a group and may have multiple IP addresses. M is a multihomed machine (a machine with more than one network card) and I is an Internet group.
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