Shall I use DEP in Vista?

[TOMxEU]

I had never used DEP in XP, I even used to disable it in Vista till yesterday.
But I have decided to use UAC, so I turned on DEP for all programs and I wonder:
Does software DEP slow down PC and is it really needed, since UAC asks for exe anyway?

[WSFuser]

unlike UAC, DEP is silent. and it doesnt affect performance afaik.

u can even enable DEP for all programs; theres very few programs are incompatible with it anyways. and for those that are there, u can easily exclude them.

[TOMxEU]

OK, thanks. I will keep it on. ;)

[Osaban]

What is exactly DEP (Data Execution Prevention)? Does it work as an in built HIPS within XP? I have enabled it for all programs, and so far I've noticed no slowdowns or conflicts with any program.

Some info, thanks

[Meriadoc]

I've always turned it on for all programs and services, then you can tweak the programs that have a problem with it when prompted.
It will help in stopping a process trying to put data beyond where it is supposed, into other memory locations - buffer overrun/overflow.

buffer overflow attacks (http://www.windowsecurity.com/articles/Analysis_of_Buffer_Overflow_Attacks.html)

software protects aganst one, hardware DEP is what you need.

DEP in Depth (http://www.grc.com/SecurityNow.htm#78)

[farmerlee]

Yeah i'd recommend using it, my cpu has hardware DEP so i always have it enabled. The only problems i've had was on win2003, when i tried to play some games they would crash out so i had to use DEP only for essential windows programs and services.

[WSFuser]

@farmerlee - did u try adding the games to the DEP exclusion list?

[farmerlee]

{QUOTE-> @farmerlee - did u try adding the games to the DEP exclusion list? <-QUOTE}
LOL i actually never even thought about doing that, ROFL! I'm glad theres some smart people like you on this board to help us newbs :)

[Paranoid2000]

If the DEP in Vista is the same as that in XP, then it certainly can be worked around (http://www.wilderssecurity.com/showpost.php?p=597153&postcount=4) by malware, but as long as there are no compatibility issues, keeping it on should not do any harm.