I do quite a bit of Crystal Reports consulting by phone. I find that making a remote connection to my customer’s PC is rarely needed, but is sometimes helpful. So I did some research on current options for desktop sharing.
My current favorite is Crossloop. It is a free program that any two people can download and install. Within a few minutes either user can take control of the other’s PC.
No registration is required, it has no adware/spyware, no time limits, it is secure and free. All session traffic is encrypted end-to-end. The person whose PC is being shared has to initiate the connection by giving the user a random 12 digit key generated by the program. When the remote user attempts to connect, the host must also allow the connection at that point. Once allowed, the remote user has shared control of the desktop host desktop.
Or, if you like Webex you might also look at the new AOL/Webex collaboration called AIM Pro. It includes free 2-person Webex sessions and several other nice features.