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WinXP DEP: DataExecutionProtection - enabled or disabled?

post #1 of 5
Thread Starter 
Hi there ...

Posting this to the networking/security forum as it's more technically a security question ...

In Windows XP, I have the Data Execution and Protection (DEP), enabled ...

What I'm wondering is this...

Does DEP use much system resources? Would disabling it cause any sort of performance gain on my system? And, finally ... is it really that important of a security feature or is it just bloat?

I'm big into disabling everything I can in Windows XP (file protection, sys restore, etc.) and if I can find something that gives me a performance bump while still being relatively safe ... then I'll do that too.

Thanks for any replies ...

    
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post #2 of 5
Data Execution Prevention (DEP) is a set of hardware and software technologies that perform additional checks on memory to help prevent malicious code from running on a system.

It's much like an Anti-System Error Service, This helps prevent certain exploits that store code via a buffer overflow.

DEP is occasionally the cause of software problems, usually with older software. These problems may be solved by disabling the DEP features. DEP can be turned off on a per-application basis, or turned off entirely, retaining compatibility for older programs (Guide)
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post #3 of 5
The included setting in WIn XP doesn't do anything

DEP is supposed to be implamented in the CPU nothing else.

Here is how it works. Let's say you get a virus of some sort. The virus writter knows where the code on the OS is so it can run from that specific area.

This basickly randomises that so it won't be able to fun. It's one of the gREATEST ways to protect your computer. Sadly only the latest cpu's have it namingly the C2D for example. You must enable this option in your bios.
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post #4 of 5
well heck I have it on and as far as I can tell...hardly any difference...anyone care to test it out with 3dmark or super PI or something ?
    
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post #5 of 5
Thread Starter 
Think it's on by default ... I'm just going to leave the software setting unchanged as things have been running okay ...

Thanks for the replies...
    
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