How can i access my computer by using Cisco VPN in remote location?

Lots of expensive hardware and software. Or you could just enable terminal services and port forward it on your router at home to the computer that has it enabled. Use a program like no-ip.org to ign a DNS name to your Dynamic IP. In the sources there's a quick link to remotely accessing your computer without using a bunch of useless software and about 40 minutes of configuring with stuff that comes with windows already . . .