Writing a BGINFO like Script: Displaying DNS Server settings with WMI via the Win32_NetworkAdapterConfiguration class

I recently had to provide the information displayed with BGINFO on a number of systems. Unfortunately, BGInfo only generates a bitmap, so far as I know, so I decided to write a script to generate the information and use this displayed information to send back to the person who requested it.

The function below is a part of the script I mentioned. It retrieves and returns text that represents the DNS Server settings for the network adapters in the system.

You can view all the scripts in this BGINFO series here.

Here is the code:

Function GetDNSAddress(strComputer)
on error resume next
Dim colItems, objItem, address
Dim StrQuery
Dim objWMIService
Dim IP

StrQuery = “SELECT * FROM Win32_NetworkAdapterConfiguration WHERE IPEnabled = True”
Set objWMIService = GetObject(“winmgmts:\\” & strComputer & “\root\CIMV2″)
Set colItems = objWMIService.ExecQuery(strQuery,,48)

For Each objItem in colItems
For Each address In objItem.DNSServerSearchOrder
IP = replace(address,”:”,”")
‘IP = Replace(IP,vbnull,”No IP Assigned”)
GetDNSAddress = GetDNSAddress & vbTab & mid(objItem.caption,InStr(objItem.caption,”]”)+2) & “: ” & IP & vbcrLF
Next
Next
On Error GoTo 0
End Function