Uploading Multiple Files using FileUpload Control in ASP.Net 2.0, 3.0 and 3.5

Here Mudassar Ahmed Khan has explained how to upload multiple files using FileUpload Control in ASP.Net versions 2.0, 3.0 and 3.5. Older ASP.Net versions such as 2.0, 3.0 and 3.5 does not support the new AJAX based controls for uploading multiple files and hence dynamic FileUpload controls are created using JavaScript for selecting and uploading multiple files.