Register a custom url protocol handler and run handler application from web browser(IE, Chrome, FF).
You can register a custom url scheme at browser, for example, "magnet:?key=value".
Please read follow document link:
http://msdn.microsoft.com/en-us/library/ie/aa767914(v=vs.85).aspx#app_reg
Editing value of 'excluded_schemes' in 'Local State' json file which follow path:
%LOCAL_APPDATA%/Google/Chrome/User Data/Local State