A. The unattended installation file contains details for settings that will apply to all machines, however there are some settings that you may want to be different from machine to machine, such as user name, computer name, TCP/IP address etc. This can be accomplished by producing a text file in a certain format, with different sections for each computer. The UDF file is used by specifying the /UDF:ID[,]. An example UDF file would be [UniqueIds] u1 = UserData,TCPIPParams u2 = UserData,TCPIPParams [u1:UserData] FullName = “John Savill” ComputerName = SavillComp ProductID = xxx-xxxxxx [u1:TCPIPParams] IPAddress = 200.200.153.45 [u2:UserData] FullName = “Kevin Savill” ComputerName = KevinComp ProductID = xxx-xxxxxx [u2:TCPIPParams] IPAddress = 200.200.153.46 The ID specified would be (in the case above) u1 or u2. If the above file was saved as udf.txt to perform an unattended installation for machine one you would use winnt /b /s:z: /u:unattend.txt /UDF:u1,udf.txt whic