safedisc stuff

[Ivan Leo Puoti]

Hi guys,
Mike Hearn asked me to send the work in progress stuff, so here it is 
(some stuff has been removed for legal reasons, so  you can't run it in 
a debugger). Some of it sucks (See QueryServiceStatus for the worst hack 
ever, that doesn't even usually work), but the design should be more or 
less ok. It needs lots of cleanup and optimisation.

Ivan.