Lotus Script to be excute only after an exe program ended...

HI I am having much headach with this, I've very new to lotus script . I have a VB program which create files inside a temp folder inside the c:\ and what the lotus script needs to do is. Create an agent that call my exe program then after the program ends get the files that the exe created inside the temp folder and attach it to the new memo that the user have already created.

 I have tried the Yeild function and apparently the win3.1 API doesn't support the w2k and its a big mess here. Please help.

Below is my code. What its doing now is it doesn't wait untill the shell program ends, the message box pops up imideately when the program is called and I don't want it that way. Msg box is my temporarily solution to halt the script.

Sub Initialize
      
      Dim session As New NotesSession
      Dim curdb As NotesDatabase
      Dim workspace As New NotesUIWorkspace
      Dim rtitem As NotesRichTextItem
      Dim object As NotesEmbeddedObject
      Dim chk As Boolean
      Dim result As Integer
      result = Shell ( "C:\test.exe", 1)
      
      Msgbox "Please click on OK when you have selected the Documents to be Attached."
      
      Set curdb = session.CurrentDatabase
      Dim doc As New NotesDocument (curdb)
      Set rtitem = doc.CreateRichTextItem( "Body" )      
      Dim pathName As String, fileName As String
      pathName$ = "C:\Temp\"
      fileName$ = Dir$(pathName$, 0)
      Do While fileName$ <> ""
            Msgbox fileName$
            Set object = rtitem.EmbedObject( EMBED_ATTACHMENT, "",pathName$&fileName$ )            
            Kill pathName$&fileName$            
            fileName$ = Dir$()
      Loop
      doc.Form = "Memo"      
      Call doc.save (True, True)
      Call workspace.EditDocument(True, doc)      
End Sub