Is it possible (does anyone do this?) to create some kind of custom snmp/sensor/app for say a web application that can be queried by PRTG?
For example I would like to include stats from a running web application along with all the hardware monitoring i.e. number of purchases made / shopping carts active / number of product searches / pages served etc.
These are obviously custom values that I would need to persist in some application - that's a development problem. What I want to know is, do people do this with PRTG and if so what do they do to implement it so that PRTG can get to the information and display it?