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Editorial Team
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Asked: 2026-05-16T02:13:58+00:00

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click Dim p

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Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click

Dim p As New ProcessStartInfo
p.FileName = "D:\c\File_copy_program.exe"
p.Arguments = "D:\c\File_copy_program.exe" & "D:\PE.nrg" & "D:\c\1.nrg"
p.WindowStyle = ProcessWindowStyle.Hidden
Process.Start(p)

End Sub

As you may see in the Above Code i am trying to run a program called File_copy_program.exe, which i created using C++. Now this program takes 3 Arguments in Main (i.e. program name, source file, target file).

Now the line:
p.Arguments = “D:\c\File_copy_program.exe” & “D:\PE.nrg” & “D:\c\1.nrg”

is not working. And my program says invalid number of arguments passed (since i have a condition in it to make sure the program aborts if number of arguments are not equal to 3).

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1 Answer

  1. Editorial Team

    You need to pass in the arguments as you would pass them to the program on the command line:

    p.Arguments = "D:\PE.nrg D:\c\1.nrg"

    Or, if using variables:

    p.Arguments = arg1string & " " & arg2string

    As you can see from the first example, you don’t pass in the program name as an argument, the same way that you would not follow the program name with itself again on the command line.

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