QUOTE (ePost @ Oct 8 2009, 04:06 PM)

But CCleaner wont delete the wrong keys. It never did. It's the safest regcleaner on the planet.
And today's award for bravery goes to ...

johhnyq there are various ways you coud hide it, or maybe change permissions on the exe ... depending on various factors like the OS and how clever the students are! Though if they are capable of doing damage with ccleaner I would have thought that would have be the least of your worries - what problems do you envisage by them having ccleaner access?