Hi! First of all, excelent program, it's one of the best and simplest VNCs that I've tried, and it's also free!! So thanks for making my life easier.
Now, I'd like to propose the addition of a shell like an ssh shell.
It'd also be great if you can use the ultravnc as a SSH tunnel.
I don't think that it'll be something hard to add, since you have freesshd with open source and you can implement it to your code, with the proper credits to the author of course.
Well, that was it, thanks for everything!