You need to do two things:

1. Change the URL you use to use HTTPS instead of HTTP
2. Get a certificate from a company like Thawte (www.thawte.com). Certificates are not free, and must be installed on your server. They are issued for a specific company and web site.

>I have build a server using MS Winsock and VFP 7
>which receives commands using HTTP protocol sitting in port 80
>The client talking with my server is IE 6.
>
>I need to secure this connection using HTTPS or some other method which
>IE 6 understands.
>
>I think I must add some software between by application and internet port which encrypts/decrypts data.
>
>Is such free software available ?