Modifying the Browser Definition File
Applies to: SharePoint Foundation 2010
You can modify the Microsoft SharePoint Foundation browser definition file at \\Inetpub\wwwroot\wss\VirtualDirectories\port_number\App_Browsers\compat.browser, where port_number is the port number of a Web application, to add support for new mobile devices. For information about modifying the browser definition file, see Browser Definition File Schema (browsers Element). The compat.browser file must be modified identically on all servers. For a suggestion about how to do this programmatically, see How to: Run Code on All Web Servers.