I use Chromium 4 instead of Chrome, because the zip archive availability provides me some more customization otptions, but I think it would not be very difficult to add a Chromium support: The caches are the same as those of Chrome except for the folder name: c:\Documents and Settings\<user name>\Local Settings\Application Data\Chromium\User Data\. As far as I remember, subfolders are the same as in Chrome.