Crash when trying to QueryService IID_ISimpleDOMDocument or IID_ISimpleDOMNode with FF4 RC1 on Windows 7 SP1 64 bits

Sylvain <[email protected]> Fri, 11 Mar 2011 14:58:47 -0800 (PST)

Newsgroups	gmane.comp.mozilla.accessibility
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Hi,

My code works fine with FF4 RC1 on Windows XP SP3, but crashes on
Windows 7 SP1 Family Premium 64 bits :

	VARIANT vtStart,vtResult;
	vtStart.vt=VT_I4;
	vtStart.lVal=CHILDID_SELF;
	hr=pAccessible->accNavigate(0x1009,vtStart,&vtResult); //
NAVRELATION_EMBEDS = 0x1009
	if (FAILED(hr)) ...
	if (vtResult.vt!=VT_DISPATCH) ...
	pIDispatch=(IDispatch*)vtResult.lVal;
	if (pIDispatch==NULL) ...
	hr=pIDispatch->QueryInterface(IID_IServiceProvider,
(void**)&pServiceProvider);
	if (FAILED(hr)) ...
	hr=pServiceProvider->QueryService(refguid,IID_ISimpleDOMDocument,
(void**) &pSimpleDOMDocument);

My program crashes when calling QueryService. I also tried to call
QueryService on the first document child (which is a <BR> object),
result is the same.

It looks like there is a problem with IID_ISimpleDOMDocument and
IID_ISimpleDOMNode interfaces... So I tried regsvr32.exe
accessiblemarshal.dll on cmd.exe of administrator mode, but it still
crashes.

Does anybody have the same problem? Any idea?

Thanks!

- Sylvain