Utility for Simulating Flash Player Problems?

I once stumbled across a utility that allowed a developer to “disable” his flash player so that you could test what happens when a real-world user tries to view your website without the proper Flash Player. Alas, I can’t recall where.

Does anyone know of such a utility? Or, what is the preferred way among flash developers to test what happens when a user hasn’t upgraded to the latest and greatest yet? (Short of temporarily uninstalling your Flash Player).