I seem to recall that my older Vista machine didn't work with the old school .chm windows help files. It seems Windows 8 isn't much better. I have a calculator app Excalibur that will pop up a help window with an index, but none of the entries seem to have any help on them.
I want to program some functions and I can't remember if the inverse key will work with them. The inverse key on Excalibur is a bit like the function keys on the HP calculators, but it only shows in the conversion mode to invert the sense of the conversion. I am adding my own conversions and would like to have the use of this. I also can't remember how all the programming functions work and would like to read up on this.