I recently posted a recipe for how to install EOS software upgrades without the CD on 64 bit systems. For completeness sake, I will also post the recipe for 32 bit systems. Please note that I haven’t tested this. I would therefore appreciate if you could use the comment feature and let me know whether this works or not.
Paste the following into notepad and save as canon.reg:
Windows Registry Editor Version 5.00
Then right click the file and select Merge. You should now be able top install the upgrades on a clean system.