Problem with canlib on windows8.1

A problem with canlib libraries on Windows8.1 x64 when running the example on this link https://www.kvaser.com/developer-blog/improved-api-python-canlib-v1-5/

The error looks as follow: Traceback (most recent call last): File "D:\essai11\essai11.py", line 1, in from canlib import canlib, Frame File "D:\lib\site-packages\canlib\canlib_init_.py", line 14, in from .channel import Channel, openChannel, ScriptText File "D:\lib\site-packages\canlib\canlib\channel.py", line 11, in from . import iopin File "D:\lib\site-packages\canlib\canlib\iopin.py", line 12, in from . import wrapper File "D:\lib\site-packages\canlib\canlib\wrapper.py", line 14, in _ct_dll = dllLoader.load_dll(win_name='canlib32.dll', File "D:\lib\site-packages\canlib\dllLoader.py", line 147, in load_dll aKey = winreg.OpenKey(aReg, aKeyName) FileNotFoundError: [WinError 2] The system cannot find the specified file