Question

I have an app and I have a file type associated with it. When I doubleclick the file it opens my app but the filename/path never gets passed to my app. It does work if I drag the file over the icon, however. Here is the main():

    static void Main(string[] filenames)
    {
        Form1 form = null;

        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);
        form = new Form1();
        if (filenames != null && filenames.Length > 0)
            form.FileName = filenames[0];
        Application.Run(form);
    }

filenames.length comes up 0 every time (unless I drag/drop the file onto the app)

Answer 1

You should try

AppDomain.CurrentDomain.SetupInformation.ActivationArguments.ActivationData

is also is a string[]