This program has some major problems with WMI. If your WMI interfaces on your network have any kind of permissions issues, it won't be able to deply VNC or run remote commands. I wasted my time with their tech support who, after several emails told me basically that I was out of luck because my WMI was broken. They had no solutions.
Waste of money IMO.
Get mRemote and save the cash.

Really this very good tool, i am using this tool for login remote pc and solve the problems accross the network & we are using for RAS connection also

I just love VNC server thumbnail view feature.

it is cool