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Old October 14th 18, 07:53 PM posted to alt.windows7.general
Brian Gregory[_2_]
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Posts: 166
Default Data Execution Prevention (DEP)

On 14/10/2018 18:19, Jeff Barnett wrote:
Brian Gregory wrote on 10/14/2018 7:24 AM:
On 14/10/2018 07:04, Jeff Barnett wrote:
[Win 7 Pro SP1 64-bit with I7-4930K CPU]

Several years ago it was difficult to use the DEP capability provided
by modern hardware because both older programs and the OS played
silly tricks to save a microsecond here and there. I, like most of
you I presume, only turned on DEP capability for OS functions. My
question is what is recommended for today given that I'm no longer
running all those old 95, 98, and XP programs that I thought I
couldn't live without? Is it now standard to turn DEP on for
everything? It's been years since I've seen any discussion of this
topic and I'd like to get caught up.


I run many different programs old and new on my Windows 7 systems.
I think there has been only one program I ever found that needed to
run with DEP switched off. (Part of an old version of Maxima (a
computer algebra system)).


Interesting: I have Maxima on my computer and the disk and code for
Macsyma too. I haven't used either in years.


As far as I remember it was one of the Lisp interpreters or executors or
something that was a problem, probably sbcl.exe. The version I have
installed at the moment has, I think, a 64 bit version of the same thing
and is okay with DEP on.

I disapprove of the very latest Maxima versions that seem to need write
access to their program directory. The people that port it to Windows
obviously want to do the absolute minimum amount of work and don't care
about how Windows software is supposed to work.

--

Brian Gregory (in England).
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