Hi All,

 I wrote a sample application to extract the messages and attachments from
a .pst file using VB.Net which is working fine. Now i am trying to web
service enable this and when i added an operation in .asmx File

<WebMethod(), System.Web.Services.Protocols.SoapRpcMethod()> _
   Public Function extractPST(ByVal fileName As String) As String
       Dim readPST As ReadPST
       readPST = New ReadPST
       readPST.readPST(fileName)
       Return "success"
   End Function

And i have  a class ReadPST.vb which has the code

Sub readPST(ByVal fileName As String)
       Dim i As Integer
       Dim objOutlook As New Outlook.Application
       ' Dim objNS As Outlook.NameSpace = objOutlook.Session
       Dim myNameSpace As Outlook.NameSpace = objOutlook.GetNamespace("MAPI")
       'Dim file As New System.IO.StreamWriter("c:\test.html")
       ' Add the .pst File to the Name Space
       myNameSpace.AddStore(fileName)
       ...........

 And when i tried to debug the code i am getting a 500 Error at the Line
Dim myNameSpace As Outlook.NameSpace = objOutlook.GetNamespace("MAPI")

 How can i resolve this..

Thanks a lot
Sateesh