Ian Riches , Mar 18, 2005; 04:20 a.m.
http://www.canon-europe.com/Support/Patches/dpp/ works for me.
Note it says:
Canon software requirements
One of the listed exsisting software elements has to be installed on
File Viewer Utility 1.1-1.3
EOS Viewer Utility 1.0/1.1
Digital Photo Professional 1.0/1.1
RAW Image Task 1.2
So you'll need to install the software that came with your 10D for this "upgrade" to work.