Sorry for the re-post but I couldn't edit the original message which is now archived. If you have already downloaded this simulator then you should be aware that I've updated the contents of the archives again (10 Mar) as there was a problem with the original files.
I've updated the links to include the HP67 simulator which was under development until now - as I don't own an HP67 I've had to make some educated guesses about the way the simulator should behave based upon other models. Hope you like it.
You can download the
HP67C simulator here - updated 12 Mar 2008.
The source code (Visual BASIC 5.0) can be found here - updated 10 Mar 08.
To run the simulator just extract the contents of the ZIP file to a folder and just double click on the executable. It will run on Windows NT 4.0ยน, Windows 2000 and Windows XP (but NOT Windows 95/98/Me) providing that the Visual BASIC 5.0 runtime is installed (it is installed by default with Windows 2000 and XP).
Have fun - your feedback and comments are very welcome. If you find a bug (other then something covered in the known issues) then if you let me know and I'll try to fix it as soon as possible.
NOTE - Unlike the real HP67 the simulator can only handle 10 digits.
Mike T.
Edited: 12 Mar 2008, 8:51 p.m.