This VBSript sample uses WebDAV to read the mime of a message item and write it to disk.

dim sHREF
dim sUserName 
dim sPassword 
dim sResponse 
dim HttpWebRequest

dim sHREF
dim sUserName 
dim sPassword 
dim sResponse 
dim HttpWebRequest

sHREF = "http://myserver/exchange/Administrator/Inbox/testabcd.EML"  ' TODO: change as needed
sUserName = "Administrator"    ' TODO: change - needed for Basic Authentication
sPassword = "test"                   '  TODO: change - needed for Basic Authentication

set HttpWebRequest = CreateObject("microsoft.xmlhttp")
 
' TODO: If Windows authentication used, use the line below
'HttpWebRequest.Open "GET", sHREF, False 

' TODO: If Basic authentication used, use the line below
HttpWebRequest.Open "GET", sHREF, False, sUserName, sPassword  

HttpWebRequest.setRequestHeader "Content-type:", "text/xml" ' Comment out if not going to Exchange
HttpWebRequest.setRequestHeader "Translate:", "f"           ' Comment out if not going to Exchange   
HttpWebRequest.Send

sResponse  = HttpWebRequest.ResponseText  ' Returns as text
   
Set HttpWebRequest = Nothing

'wscript.echo sResponse                      ' write to screen
WriteFileText "c:\test.txt", sResponse    ' write to file

Private Sub WriteFileText(sFilePath, sText)
    Dim objFSO 'As FileSystemObject
    Dim objTextFile 'As Object
   
    Const ForReading = 1
    Const ForWriting = 2
    Const ForAppending = 8
   
    Set objFSO = CreateObject("Scripting.FileSystemObject")
    Set objTextFile = objFSO.CreateTextFile(sFilePath, True)
   
    ' Write a line.
    objTextFile.Write (sText)

    objTextFile.Close
    'objTextFile.Close

End Sub