I have a VB.Net app that creates a Word.Application and Word.Document
object. It loads a Word document. However, in my cleanup code when the user
closes the window, I call the Quit method the Word.Application object and
set the objects to nothign. This works fine except if the user closes Word
before closing the window. If the do this I get an "The RPC server is
unvailable" exception. Here's some sample code ...
Dim wa As Word.Application
Dim wd As Word.Document

Private Sub btnOpenDocument_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles btnOpenDocument.Click
   wa = New Word.Application
   wd = wa.Documents.Open("C:\Temp\MyTestDocument.doc")

   wa.Visible = True
   wd.Activate()
End Sub

Private Sub Form3_Closing(ByVal sender As Object, ByVal e As
System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
   wa.Quit()
   wd = Nothing
   wa = Nothing
End Sub

I thought I could check to see if WA Is Nothing, but that didn't work. Any
ideas on what I need to check to see if the user closed Word before the
Form3_Closing event fires? Thanks.

John