The instructions are on each tutorial's page. Click on the "How it works" tab and you will see full instructions on how to use NED or stream the videos.
I haven't tried this on a windows PC but am sure if your windows PC meets the requirements (listed under "requirements" you should be fine :-)
One way to stream the videos: Log in at designProVideo.com and go to "My account" and you'll see the options to stream there.
macProVideo.com is an online education community featuring Tutorial-Videos & Training for popular Audio & Video Applications including Adobe CS, Logic Studio, Final Cut Studio, and more.