This should be easy, but I don't know where to start.

Assuming someone has my helper app.... I would like the following operation.

When a link is clicked in a webpage, the linked file has an extension that automatically causes my application to launch and read in/operate on the file.

I've seen this functionality before and assume that the installation mechanism does two things:
1. register the file type as associated with my app
2. capture the 'clicked file' as a parameter or input stream for my app.

The operation would be like clicking an mp3 file and winamp starting. How can I make my VB app behave the same?