Urgent - How do I handle Attachments ??

I have a mailItem np. I can read the number of attachments np.
But I want them to be displayed in a listview (or other control) as an icon (large, small, doesn't matter) and when I double-click on the icon the appropriate associated program should run.

How do I do this ??

Some of you out there must know about this or where I can find related articles.

thanks in advance !