First of all, thanks for reading my question.
Second, no need to mention VNC or LogMeIn. I use both of them and I am fully aware of their features and functions.
My question is specifically about using Windows RDP client on my PC to remote in to my Mac.
The answer I always get about using Windows RDP to connect to Mac is "You can't".
However, I was recently playing with MacInCloud.com. It is a service that allows you to rent time on remote Mac machines.
What caught my eye was that they are using standard windows RDP to connect to the Mac desktops.
Any idea how they are doing it?