WordPress.org

I have already registering the files, so how it start working?

Use shortcode [risal id=x file=xxxx] at post or page (using visual or html editor) in order to use it.

What is value for 'id' and 'file'?

id refers id's number in the download-able record, and file is whatever name you decide to use. It's not depend on filename in database's record.

Why nothing happened when I clicked the provided link?

Provided link (by shortcode) will using pop-up, therefore visitor must disable pop-up blocker for your website.

What browsers this script support?

So far this scripts wrote for Internet Explorer, Firefox, Arora, Google Chrome and Opera. You may suggest others for me to rewrite the scripts and make a new realease/version.

Need any additional requirement other than wordpress?

1. Your PHP's server must support build-in mime_content_type function.
2. Your PHP's server must support GD function, in case you want to use 'Captcha'.