[Sparrow]

.Net isn't really a program but a framework providing all the means for data manipulation, drawing, etc. etc.
It's getting more and more common and isn't all that bad.
MS .Net 2.0 should appear in your installed software list if you have it.
I don't believe the installation would work without it, but it's the only thing I can think of atm.

Support at the ninjatrader board should be much better.