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I'm creating an application in Visual Studio. When the user clicks a button, I want the follow CMD command to be executed:

xcopy /s/y "C:\myfile.txt" "D:\"

I've tried this with Process.Start() but it won't work. The button code is:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    Process.Start("CMD", "/C xcopy /s/y "C:\myfile.txt" "D:\"")
End Sub

Does anyone know how I can make this work? I suspect that the problem is caused by the /s/y parameters or quotes in the CMD command.

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Your code won't compile: you need to escape the double-quotes in the string. In VB.NET you escape quotes using double-double quotes:

Process.Start( "CMD", "/C xcopy /s/y ""C:\myfile.txt"" ""D:\""" )
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7 Comments

This works fine, thanks! However, the command prompt window stays open after clicking the button. Do you know how I can close that automatically after executing the xcopy, something like the exit command or even better, don't show the CMD screen at all to the user?
@elton73: xcopy /?
@elton73 : See this, and also append & exit before the last quote.
@Visual Vincent: as a newbie to VB I'm not sure how to apply this answer to my code. This won't work: Process.Start( "CMD", "/C xcopy /s/y ""C:\myfile.txt"" ""D:\"" & exit" ).
@elton73 : That should at least close it. The answer I linked to you can just copy-paste and write your arguments in place of CmdStr: startInfo.Arguments = "/C xcopy /s/y ""C:\myfile.txt"" ""D:\"" & exit".
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