Hi Dhaval, PPTP is the client used by Microsoft windows. In your windows workstation network connection you "create a new network connection “ then “Connect using VPN " this will setup the pptp client.

Cisco VPN client is the software you download from Cisco and install in your workstation both PPTP and Cisco VPN client are totally different and separate vpn clients from each other in the sense of using different ports and protocols .

installing Microsoft pptp

http://msdn2.microsoft.com/en-us/library/ms811078.aspx

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HTH

Jorge