Looking for a free program that will allow another person to view and/or take control of my computer and vice versa?
Mikogo should fit your needs pretty well. It’s free, allows up to 10 participants per meeting, and has desktop/application sharing and remote control. It’s pretty user-friendly for free software, and they have video tutorials in case you need help with setup.
Fog Creek Copilot is free on weekends and pretty cheap at other times. I’ve never used it or go2meeting so I have no idea how they compare. https://www.copilot.com/
I recently suggested TeamViewer for a similar request, and it was well-received. Free for non-commercial use, works through most firewalls and doesn’t need any configuration beyond exchanging some codes and passwords with each other.
Do you need a program so that you can see his and he can see yours at the same time? Or is this something where you want to see and control a remote computer?
I like Ammyy. I use it all the time to work on my in-laws computers. We can both see and interact with their desktop at the same time.
I’ve used Teamviewer Many times and find it quite useful for this exact thing. I would endorse them.