CrossLoop is a very small download, and once installed and run enables a user to host a remote session (i.e. allow someone to remotely view their desktop) on his Windows PC by generating a Connection Key. The Remote User then drops that Connection Key into his local CrossLoop session, clicks Connect, and voila – a few seconds later you have a functioning VNC session!
No changes to any Firewall required – no fuss, no muss.
I used CrossLoop for the first time today to help someone install a VPN client onto their Home PC. It was a Vista machine, but CrossLoop worked without a hitch, and made life so much easier than trying to talk the end-user through each part of the work required!