Unable to get correct IP using this NSLookup macro

I had this question after viewing Nslookup in Excel.

I have domain name in A1 and the formula "=GetStringFromIPAddress(GetIPAddressFromHostName(A1))" in B1, using the macro found above along with the authors update.  However no matter what domain I use I get 0.0.0.0 instead of the IP.  Any help would be appreciated.
Joshua WinbrookAsked:
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MacroShadowCommented:
Instead of using API calls which are a pain to debug as well as platform specific, you can use this function:
Option Explicit

Function ResolveAddress(strInput As String) As String

    Dim objShell As Object, objFSO As Object, objFile As Object
    Dim strParams As String, strFile As String, strOutput As String, strText As String, strHost As String

    strFile = Environ("USERPROFILE") & "\Documents\out.txt"
    
    Set objShell = CreateObject("wscript.shell")
    strParams = "%comspec% /c NSlookup " & strInput & " > " & strFile
    objShell.Run (strParams), 0, True
        
    Set objFSO = CreateObject("Scripting.FileSystemObject")
    Set objFile = objFSO.openTextFile(strFile)
    Do Until objFile.AtEndOfStream
        strText = objFile.ReadLine
        If IsNumeric(Replace(strInput, ".", "")) Then
            If InStr(strText, "Name:") Then
                strText = Right(strText, Len(strText) - InStr(strText, "."))
                strHost = Replace(strText, "Name: ", "")
            End If
        Else
            If Len(strText) > 0 Then strHost = Trim(Right(strText, Len(strText) - 1))
        End If
    Loop
    objFile.Close

    objFSO.DeleteFile strFile
    
    If strHost = "" Then
        ResolveAddress = "Not Found"
    Else
        ResolveAddress = strHost
    End If
End Function

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Then you can use it in a formula as such:
=ResolveAddress(A1)

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Joshua WinbrookAuthor Commented:
Thank you!
Joshua WinbrookAuthor Commented:
Actually using the above code disables the ability to use arrow keys to navigate around the document, and hangs my PC.
MacroShadowCommented:
That is strange.
Did you try debugging the code?
Place a breakpoint at he beginning of the code and then step through it line by line.
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