AUDITING FUNCTION FOR MOSS 2007/2010

Development of a MOSS 2010 /2007 feature that for tracking in a SharePoint list or in a CSV file (with the same format), all login requests to an application, failed and successful, and logout. The created list, or log files, must be hosted in the same web application on which the feature is activated, and must be hidden and accessible only to profiles capable of "Full Control ". The feature must be activated for any web application hosted on a MOSS farm 2007/2010, and shall not in any way "out of scope" of the web application. The solution can not be based on enabling cookies or techniques that require client manipulation (which you will never have access). It’s required to the supplier to indicate a possible architectural solution to meet the server side (eg http module, advanced sessions on web server, ...), without prejudice to the technological constraints of using C # and those imposed by the platforms MOSS 2007/2010. The solutions involve the use of third-party tools must be duly substantiated. You must provide a solution containing a MOSS feature and its feature receiver. No configuration should be done by hand, and any supporting data structures must be hosted in MOSS. All interfaces will be made in Italian, so we prefer native Italian speakers profiles.