Desktop Dyno Programs

I saw the "Dyno2000" as an option and was going to ask about this option, but saw it was older and didn't know if anyone was using it. How do you like it? Can you enter your own cam specs, or do you have to choose between listed profiles?
Still using it on Windows XP. It's fun for doing imaginary builds or seeing if sticking in a different cam, bigger valves etc. will get the results you're after. Yes you can enter your own cam specs or pick from a few choices like torque/rv, street/strip, race cams, rollers, flat tappets, hydraulic.

It's not perfect, when entering boost levels on a blower/turbo, changing the psi makes almost zero difference. Never figured it out, but it's certainly wrong in that aspect.