Data Execution Prevention - how can prevent it ???

Discussion in 'Windows Vista Security' started by m.emam, May 15, 2007.

  1. m.emam

    m.emam Guest

    dear sir/mrs
    i bought new lap top "dell "with windows vista , iam trying to use msn live
    messenger but it is stop working as soon i sing in , i have message from sys.
    say that i stop due to "Data Execution Prevention"
    i need help to use your live messenger it is essential for me

    fast response will be highly appriciated ,

    best regards,


    m. emam
     
    m.emam, May 15, 2007
    #1
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  2. Hi,

    Try to add msn app to the exceptions:
    Control Panel\System and Maintenance\System -> Advanced system settings ->
    Performance -> Settings -> Data Execution Prevention

    Marcin Domaslawski
     
    Marcin Domaslawski, May 15, 2007
    #2
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  3. m.emam

    Michal Bucko Guest

    messenger but it is stop working as soon i sing in , i have message from
    Can you provide more information (e.g. debugger's output)?
     
    Michal Bucko, May 15, 2007
    #3
  4. m.emam

    Robert Moir Guest

    Fact is, I don't think messenger should be triggering this by itself in the
    first place. I suspect you have something else loaded that isn't playing
    nice and clashes with it. If this is a brand new PC and the only thing
    you've loaded IS messenger then I'd go back to Dell and ask them for help
    fixing their busted-ass config.

    If you've installed plugins, extras, etc. for messenger then uninstall them.
     
    Robert Moir, May 16, 2007
    #4
  5. m.emam

    Mamamegs Guest

    m.emam formulated the question :
    You can turn DEP off altogether, although it's not recommended.
    See:
    http://www.vistabits.nl/tipstricks_gb.htm#DEP_uitzetten

    --
    Mamamegs.

    I reject your reality and substitute my own.
    (Adam Savage)

    www.vistabits.nl

    MSN:
    _**_
     
    Mamamegs, May 16, 2007
    #5
  6. m.emam

    Alun Harford Guest

    DEP is preventing Messenger from running data as instructions - this is
    a good thing. If you turn DEP off, worse things are likely to happen (if
    you're lucky, it will still just crash - if you're unlucky, you'll get a
    worm on your computer, and it'll crash).

    Update your software to the latest version and see if that gets rid of
    the problem.

    Alun Harford
     
    Alun Harford, May 16, 2007
    #6
  7. reply to all

    I have this problem with data execution prevention, and have been looking in
    the forums for help.Everyone has the same comment, either you should opt out
    the program in qustion or you shold reeinstall the program. But noone seems
    to know why the "DEP" is activated. Is it a fult or a bug or the
    identification of an actial worm.

    In in my case it started with that I couldnt open a map with avi files,
    everytime i try the explorer crasches ( or i e the DEP activates a window
    saying that the DEP has prevented explorer to work out th desired action )

    does anyone have an explanation to this situation, I have found lots of
    topics around this but no real indepth explanation.
     
    P-Ã… Norberg, Jun 4, 2007
    #7
  8. m.emam

    Morris Cox Guest

    DEP keeps areas in memory that are marked to be used for data only used
    for data. Some attacks launch from areas in memory that are only meant
    to be used for data and not for execution. This method allows the attack
    to bypass certain protections. If a program is triggering DEP, then the
    programmers needs to start following best practices.

    Morris Cox
     
    Morris Cox, Aug 29, 2007
    #8
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