IVR with Tserver

I am having problems reading the UUI data that is added to our calls from our IVR I can see the data in the Tserver Logs, however I cannot retrive the code in VB. here is my sample code.

intListCount = EventInfo.UserData.GetCount

If intListCount > 0 Then

For intLoopCounter = 0 To intListCount 1

  myKey = EventInfo.UserData.Get(intLoopCounter).Key 

  Select Case myKey 

     Case "UU_DATA" 

       Debug.Print "UU_DATA: " + EventInfo.UserData.Get(intLoopCounter).StringValue 

  End Select 

Next intLoopCounter

End If

Can you point me in the right direction???