Establish a VPN

Hi, I want to connect the corp's server from home. So I decide to use VPN.
But I failed via control panel=>create a new connection etc.

I heard that it has to download client something, I lack of this kind of knowledge. Does windows set up a vpn is not enough?

I use windows 7 home premium 64 bit. Need your advice.

Thanks

 

To be honest, I don't know how to check it.

 

Okay. Now the connection is okay. Our company uses Cisco and I downloaded the Cisco VPN client. I can login with my company's user and password at home.

Now new question arises: how to connect my desktop in the office? Suppose I know the machine name. I have not seen other interface except VPN client window. The client version is 5.0.07.0290.