Make our application show in access and defaults

Question

We are developing our application to be a default e-mail program, and would like it to be one of the options in the Control Panel-> Add or Remove Programs-> Access and Defaults-> Custom-> Choose a default e-mail program: area. How is this done?

It's a rather simple registry change to add the application to the list in IExplore-> Tools -> Internet Options -> Programs -> E-mail: But apparently this is not the list that is displayed in the Access and Defaults area.

Answer 1

Here's the msdn page for Registering Programs with Client Types, which is what you need to do. It's a few registry keys, and there is even a sample for a mail client.