This should work with LIBRIe for Windows from Sony, which shuttles files between PC and Librie or memory stick, but can also be used to open books on a desktop:
http://www.sony.jp/products/Consumer.../libriele.html
Keep in mind this tool is made for the Japanese version of Windows, so you could run into problems when you try it on another language version. In any case, I attached an English (non official) version for you to this thread. You will still need to install the Japanese version first though.