There are some key bindings that make the emulator easier to use in typical usage. Make sure the calculator is in focus (by clicking it) so it can receive the. This one does, however: Link to HPc emulator. I've installed it: as you say, it runs without any activation, but on my computer the display is. The closest thing to a new HPC is an I Pod Touch down load software emulator. Davy Jones's micro calc is an option. I missed my HPC. The official HP emulator app. For nostalgic types who are old enough to know. This was one of the best HP calculators, it represents the end of an era. Emulators. An official PC emulator for the 15C is available as freeware from Hewlett-Packard. Another version is commercially. In particular, there are situations where the numeric display is known to be totally wrong. This web site and software is not associated with HP or is subsidiaries.