думаю вначале стоило собрать информацию о имени компа и текущем пользователе
а выдачу ответа на консоль вставить в цикле получения информации об IP-адресе и MAC
тогда ты получишь несколько строк
Измененный код
Код:

on error resume next
strComputer = Wscript.Arguments.Item(0)
' Use "." (local computer) if no computer-name was entered
if strComputer = "" then
strComputer="."
end if
' GET HOST NETBIOS NAME
If strComputer = "." Then
Set objWMIService = GetObject( "winmgmts:\\" & strComputer & "\root\cimv2")
Set colItems = objWMIService.ExecQuery( "Select * from Win32_ComputerSystem", , 48 )
'Grab the netbios name of each computer
For Each objItem in colItems
info_nbname = objItem.Name
' WScript.Echo "MAC Address for Computer Name: " & host & " is " & macinfo 'Uncomment to display
Next
Else
info_nbname = strComputer
End If
' GET CURRENT USER
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")
Set colItems = objWMIService.ExecQuery("Select * From Win32_ComputerSystem")
For Each objItem In colItems
info_user = objItem.UserName
Next
Dim objFile, objFolder, objFSO
Dim strFolder, strFile, strLine
strFolder = "c:\"
strFile = "USERS.txt"
Set objFSO = CreateObject("Scripting.FileSystemObject")
set objFile = nothing
' For auditing, we want APPEND mode to track all MAC/IPs for the computer
Const ForAppending = 8
Set objFile = objFSO.OpenTextFile (strFolder & strFile, ForAppending, True)
' Write Computer Name, MAC address, IP Address(es) and Date to a text file
objFile.WriteLine("NEW LAUNCH")
Set objWMIService = GetObject("winmgmts:" _
& "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")
Set IPConfigSet = objWMIService.ExecQuery _
("Select * from Win32_NetworkAdapterConfiguration Where IPEnabled=TRUE")
For Each IPConfig in IPConfigSet
If Not IsNull(IPConfig.IPAddress) Then
For i=LBound(IPConfig.IPAddress) to UBound(IPConfig.IPAddress)
info_ip = IPConfig.IPAddress(i)
Next
'WScript.Echo IPConfig.MacAddress
info_mac = IPConfig.MacAddress
strLine = info_user & "," & info_mac & "," & info_ip & "," & info_nbname
objFile.WriteLine(strLine)
MsgBox(strLine)
End If
Next
objFile.Close
wscript.quit(0)
Обращаю внимание, что я немного поменял названия переменных, чтоб немного понимать, где наши целевые значения находятся