I've done a good bit of research to find an upload component for .NET that I can use to upload large files, has a progress bar, and can resume the upload of large files. I've come across some components like AjaxUploader, SlickUpload, and PowUpload, to name a few. Each of these options cost money and only PowUpload does the resumable upload, but it does it with a java applet. I'm willing to pay for a component that does those things well, but if I could write it myself that would be best.

I have two questions:

1. Is it possible to resume a file upload on the client without using flash/java/Silverlight?
2. Does anyone have some code or a link to an article that explains how to write a .NET HTTPHandler that will allow streaming upload and an ajax progress bar?

Thank you,
Austin

[Edit]

I realized I do need to be able to do resumable file uploads for my project, any suggestions for components that can do that?