Canon also present CR2 Converter for Windows. Below are overview of this tool. For its usage instruction refer to Canon 5d Manual.
Compatible OS:
Windows XP
Windows 2000
When you use EOS D2000, RAW images should be converted in advance using CR2 Converter for Windows.
CR2 Converter for Windows converts RAW images taken by EOS D2000 into RAW images with CR2 extensions so that they can be displayed/edited in Digital Photo Professional.
CR2 Converter for Windows is only available in English. You can download and install CR2 Converter for Windows in the same way as Digital Photo Professional Updater for Windows.
To start the CR2 Converter for Windows, open the [Canon] folder under the [Program Files] in the startup drive. Then double-click [omce.exe] in the [CR2 Converter] folder.