Ending aspnet_wp.exe

Is there any way of ending the Worker Process, short of using

the Task Manager?

I did (finished) a project with asynchronous multi-threading and I

kept an eye out on the thread count and the size of the process.

The thread count worked as expected but the size of the

aspnet_wp.exe sometimes grew to 300 megs. I invoked some

better dispose methods and was able to contain it to less than

60 megs.

Is there a way to kill the process or reduce the size after or once

a page is loaded?