To make your website run on HTTPS,
1. You need to purchase the SSL certificate for your website/domain name (e.g. from Thawte, Verysign).
2. Install the certificate to the web server.
3. Open IIS Manager, Expand Websites(left Panel), Choose your website, right click and select properties.
4. Under 'Directory Security' tab, within 'Secure Communications' section, click EDIT button.
5. Check the Require Secure Channel(SSL) checkbox, Click OK & Exit.
6. Stop, Start the Website you have selected.
7. Now if you open your web pages with https instead of http, this should work & you must be able to view the pages.
8. You may control all the website pages programatically to open in HTTPS mode.

Hope this works...

How do I make my website https?