We are currently investigating different remote-desktop support solutions to help our clients if they have any problems with our software and I would like some input on the best solutions out there.
We have the following needs / wishes:
Cross platform
Preferrably no installation on the user-end
Should penetrate firewalls and not be bothered by antivirus stuff.
Should leave no residu behind after support.
I know of VNC, logmeinrescue.com, dameware remote control, msn remote desktop and many others, but which one is the best?