Re: System debugger and DVD apps
From: Peter Duniho (NpOeStPeAdM_at_NnOwSlPiAnMk.com)
Date: 05/06/04
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Date: Thu, 6 May 2004 08:52:14 -0700
"Iain" <idownsXXXX@dircon.co.uk> wrote in message
news:%238PYXG2MEHA.3572@tk2msftngp13.phx.gbl...
> I would expect this to be caused by the MPEG2 decoder. A lot of decoders
> refuse to run in a debugger so that you cannot hack how they work.
Another option is to load the decoder in a hex editor and replace the code
that checks for the debugger with NOPs. If you just want one-time access,
you could even just do this in the debugger (ironically enough).
I don't know what makes a programmer (presumably who is familiar with
debuggers) think that they can prevent someone from deciphering their code
just by refusing to run when a debugger is present. It's axiomatic that
once the code is on someone else's computer, they have complete access to
it. Distribution and security are mutually exclusive.
That said, it's good to know that there are decoders that don't waste our
time with stuff like this. Easiest solution is, of course, the one
mentioned already (using a decoder that's not so silly).
Pete
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