Question : Drag n Drop File Upload

Based on the concept here: http://googlesystem.blogspot.com/2007/02/upload-files-in-browser-using-drag-and.html

I am looking for the best method for achieving this using C#, Framework 3.5 and AJAX for Internet Explorer.

I have come across many examples of this type of discussion: http://forums.asp.net/t/1055385.aspx

It must be possible to create "Drag n Drop File Upload" functionality without purchasing 3rd party software and also avoiding Java and ActiveX add-ins.

From what I understand, Firefox has behavior which will allow the retrieval of a file path for uploading when a file is dragged and "dropped" over a browser window.

1st prize would be to be able to drop a folder onto a designated area in an IE browser window, and then to upload the whole folder structure.

I do not want to limit the answer to traditional Web POST file upload methods. FTP and WebDAV solutions are also welcome.

Answer : Drag n Drop File Upload

Http POST using the HttpURLConnection java class.

There's a great site I've come accross explaining the firefox model in the following links..
Part 1
http://straxus.javadevelopersjournal.com/creating_a_mozillafirefox_drag_and_drop_file_upload_script_p.htm
Part 2
http://straxus.javadevelopersjournal.com/creating_a_mozillafirefox_drag_and_drop_file_upload_script_p_1.htm

It still depends on java though (it needs to be packaged as a signed jar to work).