Application plugins can insert links in an HTML page that send a request back to itself. Using the PluginServerUrl parameter that is passed to the script, URL's can be constructed with the form:
PLUGIN_SERVER_URL/APP_PLUGIN_ID/PluginRequest?ParamStringwhere APP_PLUGIN_ID is the target plugin's ID and PluginRequest/ParamString can be whatever you like. When the user clicks on this link, the script will be run with the following INI file:
[System] Command=ProcessRequest PluginRequest=... ParamString=...