Strange problem after using OpenFileDialog

[Richard Ruben]

We have a very strange problem when we are using the OpenFileDialog component.
Consider the following code:

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Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Me.OpenFileDialog1.InitialDirectory = "a:\"
Me.OpenFileDialog1.ShowDialog()
End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim WS As New localhost.Service1
WS.Hello()
End Sub
---------------

First we click "Button1" this shows us the filedialog window. this works fine, we insert a diskette and select the file we want to use.

Now we click "Button2" which calls a webservice in my local PC. When doing de NEW statement the progam asks for the the diskette again!!! (Why we don´t now) If we do not insert the diskette the following error is thrown:

(Sorry only got the spanish exception)
Excepción no controlada del tipo 'System.Runtime.InteropServices.ExternalException' en system.dll

Información adicional: No se puede ejecutar el programa. El comando que se estaba ejecutando era "c:\windows\microsoft.net\framework\v1.1.4322\csc. exe" /noconfig @"C:\DOCUME~1\err9839\CONFIG~1\Temp\w0e875t3.cmdli ne".

Can somebody tell why this is happening!!!! because we realy don´t know what is going on here.

Thanks

Richard Ruben