http://bugs.winehq.org/show_bug.cgi?id=13900
--- Comment #8 from Lukas Jirkovsky l.jirkovsky@gmail.com 2008-06-14 12:09:13 --- One thing that can be useful for testing. If you don't have CD which came with Canon DSLR cameras, you can fool updater to install DPP with small change to registry: Add key `Canon` to HKEY_LOCAL_MACHINE/SOFTWARE. Then add key `DPP` inside it. According to some forums installation should work now.
NOTE: I have not tested it, because I had installed DPP 2.2.0.1 before.