I figured it out! I created a Windows XP Virtual Machine and installed the Casio CW50 Vista 32 Bit Drivers. Then:
1. Press F8 while booting Win 64 and put win64 in “disable driver signature enforcement mode”.
2. I had already installed the 32 bit Vista version in Win64, but the drivers didn’t install.
3. Tried again and they still didn’t install.
4. I manually copied the driver from the VM to Win64 and exported the proper registry key.
5. I imported the registry key into Win64.
6. It works great. Since I don’t used it very often, it’s not a big deal to press F8 every now and then.
Hope this helps,
Roscoe