Q:

Zabbix "Application" monitoring - How do I detect a "hung" frozen application

I have Zabbix Server on Ubuntu working... I have an Agent install on my Windows server. Template_Windows works wonders and gives me all sorts of stats that I'm happy to play with...
The problem is that I'm trying to monitor an application. Not a service or a website. An application.
I have one application that likes to crash unexpectedly. I'd like to be able to get a "Program is not responding" alert (and then funnel that into email/sms/reports). 
I've got another server with an application that I'd like to monitor stats (CPU usage, etc).
I see how-to monitor services... but these aren't services. They are applications that run while a "User" is logged in. I can't quite find a good tutorial on how to setup something like this.
Edit:
Doing further research and tinkering... The question is becoming: Irregardless of the method, how do I detect that an application is frozen/hung/not-responding?  

Use Proc_Counter and detect if there is zero activity for say... 15 seconds?
Use a perf_info metric? I don't seem to see anything in it that would indicate a hung process, but the only man page I can find is 1.4 and current Zabbix is 1.8.4.   
VBScript, command-line test, etc that monitor/test's application with an output that can be tracked via UserParameters?

I can't seem to get something working. Once I can verify a hung process I can respond with task-kill/restart, email responsible party, etc... but I just can't seem to find a graceful way to detect a hung process/application.

A:

It took me forever to get simple-checks working. I haven't tried applications yet.
Does the second post here help at all ? http://www.zabbix.com/forum/showthread.php?t=18206

