C-Pen 200/600/800 with Windows x64
C-Pen 200/600/800 do not support 64 bit Windows but it *may* work if installing the C-Pen software in Compatibility mode.
Right click on the installer file (C-Win_3_24.exe) and then select Properties + the Compatibility tab and get a windows like in the attached image.
This solution is NOT officially tested but MAY work.