ClickOnce application does not start through Process.Start(“x.abc”) with *.abc associated to the ClickOnce application

Question

I have successfully developed and deployed a ClickOnce application which registers an associated file extension, for instance *.abc. When I click on a file name

Answer 1

Have you tried using ShellExecute(); API?

        [DllImport("Shell32.dll",CharSet=CharSet.Auto)]
    public static extern IntPtr ShellExecute(
        IntPtr hwnd, 
        string lpVerb,
        string lpFile, 
        string lpParameters, 
        string lpDirectory,
        int nShowCmd );

ShellExecute(this.Handle,"open","x.abc","","",3);

You could also try the Shell(); function which is a part of framework