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Post Post subject: Re: CEG protection   
Posted: Saturday, 25 Sep 2010, 20:02   
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Joined: Wednesday, 26 Dec 2007, 00:42
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PeJpepiG wrote:
As soon as the executable (or whatever file is CEG protected) includes CEG (information about the PC it is running on) it won't validate in Steam anymore. Steam will re-download this file if you verify game cache files. This is a commonly known fact.

Which is also sensible, since otherwise the CEG protected file could cause issues if you copied the game's content from and older installation to a new computer.

I'm not even sure whether a non-protected file would validate, but I think it does.

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Post Post subject: Re: CEG protection   
Posted: Sunday, 25 Mar 2012, 13:49   
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Joined: Tuesday, 21 Feb 2012, 20:06
Posts: 1
Hi,

CPAMX, what do you mean with your post regarding the following:

"Another thing about the CEG binary is that the entry point is always set to a function which just does:
push 8000DEAD
call ExitProcesss

To prevent that you will crash because of the missing content."


Can you please explain a little more?



Thanks.


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Post Post subject: Re: CEG protection   
Posted: Sunday, 25 Mar 2012, 15:38   
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An incomplete CEG binary (the raw binary where CEG has not been applied) would not execute properly - because there's code missing. So the binary's entry point is that stub which terminates the process with a 0x8000DEAD status code instead of trying to execute which can't work.

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