weird command added to boot.ini

[tahoma]

this thing has been added to my boot.ini: /NoExecute=OptIn

whole thing looks like:

[boot loader]

timeout=30

default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS

[operating systems]

multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /fastdetect /NoExecute=OptIn

i have no idea what that is...any clues ? cant find anything on google

[Chr1zt1an]

/NOEXECUTE

This option is only available on 32-bit versions of Windows when running on AMD64 processors and only when PAE (see the /PAE switch) is also enabled. It enables no-execute protection, which results in the Memory Manager marking pages containing data as no-execute so that they cannot be executed as code. This can be useful for preventing malicious code from exploiting buffer overflow bugs with unexpected program input in order to execute arbitrary code. No-execute protection is always enabled on 64-bit versions of Windows on AMD64 processors.

source: Boot ini Options Reference

[tahoma]

hmm thanks

i ahvent got an amd64 tho

[I8PP]

I've noticed this with build 2162 of SP2. I think it's just setting windows to use the software-based DEP that's implemented for systems without the CPU support for the protection mechanism.

[war]

Yeap it is enabled by default in Windows XP SP2.

[Nick Sheldon]

http://www.microsoft.com/technet/prodtechn...n/sp2mempr.mspx

Interesting.