I found this forum while trying to find the answer to my question. So I guess I'll ask you all.
I'm trying to make an installer but when the program installs I want it to also appear under the "More Programs" menu of Windows Media Center.
I was wondering how do you all accomplish this and I think it would be a really nice extra to go with my application. (which currently isn't even complete or near complete)

How do I go about accomplishing this?

The MCE SDK explains how to do that I think.

Thank you for telling me that. I now have the knowledge to do so and I shall share it.
Now I just have to master making a thumbnail for it and making it show up.

Adding Windows-based Applications

You can add any Windows-based application to the Media Center More Programs page by placing a shortcut to it in the following folder:

C:\Documents and Settings\User folder\Start Menu\Programs
    \Accessories\Media Center\Media Center Programs

In this path, "User folder" can be either the All Users folder or the folder of the current user, whichever is appropriate. The name of the shortcut should be the name of your application, with no "shortcut_to_" prefix, and with the extension .lnk; for example, MyApplication.lnk. The name of the shortcut, minus the .lnk extension, is displayed as the button label on the Media Center More Programs page.

Adding an application to the Media Center More Programs page also causes it to be added to the Media Center Start page menu.