The logic I use for this is shown below.  Otherapp will run without a new
console window, and mainapp reads otherapp's stdout.  Trim this stuff out if
you want - the trick you need is p.WaitForExit().

   Dim p As New System.Diagnostics.Process
   Dim s As String
   With p.StartInfo
     .FileName = "otherapp.exe"
     .Arguments = "whatever"
     .UseShellExecute = False
     .RedirectStandardError = True
     .RedirectStandardInput = True
     .RedirectStandardOutput = True
     .WindowStyle = ProcessWindowStyle.Hidden
     .CreateNoWindow = True
   End With
   Try
     p.Start()
     s = p.StandardOutput.ReadToEnd()
     p.WaitForExit()
   Catch ex As Exception
     s = ex.ToString
   End Try

Hi Joe,

Thanks for posting!

As AMercer mentioned, the Process.WaitForExit method is appropriate for the
current "trick". Just for your reference:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/
frlrfSystemDiagnosticsProcessClassWaitForExitTopic.asp

Regards,

Yuan Ren [MSFT]
Microsoft Online Support