How can I get Gmail-like file uploads for my web app?

Question

I want to add gmail-like file upload functionality for one of my projects. Can anybody help me with this?

My application is built in vb.net.

I would apprecia

Answer 1

I'd like a little more clarification of "Gmail-like" file uploading.

do you mean how if it sits for a little bit, it automatically attaches it to a draft?