There are no known free downloads. If you know anyone who has a Canon camera, you can use their disk. You do not need to have the software to connect to your computer and download. You can use the default scanner and camera wizard to download. If you are unable to do this, check the Canon website drivers and download section for your model to see if there are any driver updates for your Operating System. However if this is not a connection issue and you just want to have the software, you should try calling Canon to order the disk for under $20, I believe. Then you will be able to update the software from
www.powershot.com once you have the original version.
Hope this helps!
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