Be very careful updating this driver. Do it from the Canon website.
Be prepared to repair your system when your PC no longer recognises
your camera. There are instructions to fix it on the Canon site but
it can be very tedious. If your old driver works I suggest you
leave it alone. I have done it three times, I have regretted it
three times.
This codec only applies if you own a Canon camera that shoots in RAW
format or you need to read CRW files. Go to the Canon website first
to ensure that this version applies to your particular camera.