Attempted to read and write protected memory… ActiveX on Vista

anderslundsgard

I’ve developed an application that uses a third party ActiveX control for a long time. Now when I run the application on Windows Vista I got the following exception: at System.Windows.Froms.UnsafeMethods.IOleObject.SetClientsite(IOleClientSite pClientsite) at System.Windows.Forms.AxHost.SlowActivate() at System.Windows.Forms.AxHostTransitionUpTo(Int32 state) at System.Windows.Forms.AxHostCreateHandle() at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible) at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible) at System.Windows.Forms.AxHost.EndInit() at System.Windows.Forms.CortonaControl.InitializeComponent() ... Any idea what’s wrong with Vista?

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leppie

d00_ape wrote:

Any idea what’s wrong with Vista?

d00_ape wrote:

uses a third party ActiveX control for a long time

Not Vista, get an updated ActiveX control.

xacc.ide - now with IronScheme support
IronScheme - 1.0 alpha 2 out now

Pete OHanlon

Errm. Why do you think it's a problem with Vista? If a nail punctures your tyre do you think that's a faulty tyre? I would guess that the problem has more to do with the control misbehaving - and Vista's a lot stricter than earlier MS OSes.

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anderslundsgard

Ok nothing is 'wrong' with Vista but apparently my program that have worked on XP for years does not do that on Vista. Maybe it’s a ‘new feature’ that it does not can use old ActiveX. By the way, I have one Vista computer that my program works on but the other five cups that I have tried it on does not work. I don’t really know where I should start searching for help… I have the same question on http://www.codeguru.com/forum/showthread.php?p=1692586#post1692586

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anderslundsgard

Pete O'Hanlon wrote:

Vista's a lot stricter than earlier MS OSes

Can I in some way make Vista less stricter on my application?

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Pete OHanlon

Have you tried to set Vista to run this program as if it were an earlier version of the OS?

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anderslundsgard

Yes, I have tried Run this program as: Windows XP (Service Pack 2) and as administrator, but same result.

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mav northwind

Have you tried turning off UAC? Perhaps the ActiveX has a problem when virtualization is active...

Regards, mav -- Black holes are the places where God divided by 0...

anderslundsgard

Now I've tried that but no difference :-(

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Devils Priest

try to disable DEP