The perfect teaching aid for the classroom! This PC software replicates the FX-83ES and FX-85ES scientific calculators, allowing teachers to show the whole class step-by-step instructions on how to perform calculations and get the most out of their calculator.

If your PC/ Laptop only complies with a 64bit, it will not work..  Customer needs to install 32bit to allow this to work.

Basically the Emulators are only compatible on a 32bit operating system. There is no download patch to allow the Emulators to run on a 64 bit system. I understand this may be awkward  but there is nothing we can do until Casio Tokyo release an Emulator version that is compatible with a 64 bit system.

Windows 7 runs on a 32bit and 64bit system. It is described in this link:

http://www.w7forums.com/windows-7-64-bit-vs-32-bit-t484.html

You can check which bit you have by following the instructions on this link:

http://support.microsoft.com/kb/827218