Disable Automation

I'm trying to disable automation because apparently it causes memory leaks, and I am trying to diagnose a memory leak.

This article says I can disable memory leaks by setting a property in the HTML but I tried it and it doesn't work.

http://www.wintellect.com/blogs/sloscialo/silverlight-memory-leaks-and-automationpeers

When I run this code, it returns true:

MessageBox.Show(AutomationFactory.IsAvailable.ToString());