How to create central event handler

[Accessguru901]

I want to create a event handler that is central. Central mean i can use this event handler in more applications. I already create a event handler. Now i want to use this event handler in other applications just calling them. Is there is any way to call them. I dont want to code again for similar. For more details of my article http://accessguru.net/Articles_MSAccess/0052-how to create error handler and error log file.php