Windows VPN security

[Nem]

I have a NAS at home running windows 8.1. I have set up a VPN server using steps like this: http://www.howtogeek.com/135996/how-to-create-a-vpn-server-on-your-windows-computer-without-installing-any-software/

 

My question is: is it recommended to use something like SSL to secure the connection between client and server? If so, how do I do it on windows 8?

 

The catch here is that SSL typically uses port 443, but I also have a webserver running on the machine and 443 is used for SSL connections to my webpage...

 

There are other connection methods available that use other ports (PPTP via  port 1723), but are these methods secure in the sense that they encrypt the connection?

[.:MARK:.]

VPN software usually encrypt their connections. I doubt that windows wouldn't.