Getting a value back from a shell command$

Ok,

Suppose I send a file to another exe using a command$ (from within my program) - how do I get a string in return??

Cheers,
Vbnewbie.

Oh, to clarify - the program being called is also made by me in VB.net...

VB Code:

Dim y As New ProcessStartInfo("ipconfig", "/all")
 
        y.CreateNoWindow = True ' do not show a window
        y.RedirectStandardOutput = True ' Needed to get the output
        y.UseShellExecute = False
 
        Dim x As Process = Process.Start(y)
 
        x.StartInfo = New ProcessStartInfo("ipconfig", "/all")
        Dim output As String = x.StandardOutput.ReadToEnd
 
 
        MsgBox(output)