Another thread about solvers and the 200LX prompted me to ask this question which may be a little too off topic for that thread.

I have an old application called HPcalc.exe that I have faithfully migrated to every PC I have delt with for the past 15 years or so, and I cannot remember where it originally came from. It is obviously an old Win 3.1 era application but amazingly it still works on every MS OS down through the years. If you use Help, About you get the message

HP Financial Calculator

V 1.02 8/31/93

Copyright Hewlett-Packard 1993

The name is misleading since this is a full scientific application with a great solver. It has options for RPN or Algebraic. It actually has 6 applications Arithmetic, TVM, Business, Solver, Conversion, and Math. Actually now that I think of it, this is probably the "Calculator" that I use the most. Old habits are hard to break.

Could it be that this was the 200LX emulator and I have just forgotten that is where I aquired it?

Anyone else still use it?

It just bothers me that I cannot remember where I originally got the application. It is antiquated compared to modern emulators but quite simple and very useful. And get this! It uses a whole 250 KB of disk space.