Associate a file extension with WPF application

Question

I have a nice little assignment organizer that I want to add a backup option to. But I don't want it in an ordinary xml file or someother file because of the possibility of file corruption. So how can I make a file extension that the program knows and can save to and open with a .asog file extension?

Answer 1

You can add a file extension with either a Setup project or a ClickOnce install. Once you have it setup, a user can double click on a .asog file and your app will be invoked with the filename as the first entry in the arguments array of main.

Answer 2

Try this:
How does Vista generate the icon for documents associated to my application?

The accepted answer explains icons and file associations.

It doesn't matter that your app uses WPF. The file associations don't care what GUI framework your app uses.