CRM Desktop is an offline tool provided by Oracle, for accessing its CRM On Demand R19 data from Microsoft Outlook, We have been using it for quite some time and prepared a short guide on how to install / configure / use CRM Desktop for Oracle CRM On Demand, so that you can start accessing CRM On Demand data from your familiar Microsoft Outlook interface.
To view the slides : http://www.slideshare.net/nchokkan/using-crm-desktop-with-oracle-crm-on-demand