Use external associated file to pass arguments to my application

Question

I have a clickonce enabled C# WinForms application for which I created a file association.
How would I be able to use an external file (associated to my application) to pass arguments to my application? I would like to, with the link, have the application open up a specific form, that exists in the main application.

And also prevent it from opening a new instance if the application is already running?

Answer 1

You can create a Singleton class used by application to read configurations. The you only need to read the file and map info to that class.