I am trying to access the Calibre content server on my desktop from a Silverlight application I am developing. Silverlight fails with a security exception, since it is rather restricted on accessing data outside its sandbox.
In order to allow it to access the Calibre content server, I need to drop a crossdomain.xml policy file in the content server's site root, but I have no idea of where that site root is on my desktop. Calibre is installed in c:\Program Files (x86)\Calibre2 and my library is on D:\Calibre Library.

Can anybody help?