IXMLDOMSchemaCollection2 ->Add method fails on 64 bit OS.

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Following code runs properly on 32 bit (with msxml6.dll for 32 bit) but add function fails on 64 bit os (with msxml6.dll for 64 bit)

What might be the reason?

C++

<msxml2::isaxxmlreaderptr mode="hold" xmlns:msxml2="#unknown" />        MSXML2::IXMLDOMSchemaCollection2Ptr pSchemaColl;
        SAXErrorHandlerImpl* pErrorHandler = NULL;
        TESTHR( pSAXReader.CreateInstance(__uuidof(MSXML2::SAXXMLReader60) ));

        pErrorHandler = SAXErrorHandlerImpl::CreateInstance();
        TESTHR( pSAXReader-&gt;putErrorHandler(pErrorHandler));

        TESTHR(pSAXReader-&gt;putContentHandler(this));

        TESTHR( pSchemaColl.CreateInstance(__uuidof(MSXML2::XMLSchemaCache60)));

        std::tstring tstrXSDPath = xsdFileWithPath;

        TESTHR(  pSchemaColl-&gt;add(_bstr_t(&quot;http://www.ebxml.org/namespaces/messageHeader&quot;),
                                  _variant_t( tstrXSDPath.c_str())));

Posted 24-Mar-11 23:39pm

bharati_c

Updated 24-Mar-11 23:54pm

Sandeep Mewara

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Sergey Alexandrovich Kryukov · Answer 1 · 2011-03-25T07:11:00

Chances are, you're trying to mix 32-bit and 64-bit executable files (I mean, PE files, DLLs or EXEs or anything). They are incompatible but can be linked during build crashing only during run-time. You need to investigate all your dependencies. Microsoft Dependency Walker can help you, see http://www.dependencywalker.com/[^].

—SA

bharati_c · Answer 2 · 2011-04-15T01:48:00

on 32 bit I was using msxml4.dll for 64 bit msxml6.dll.

the given xsd failing to add in XMLDOMSchemaCache as In Msxml6 the when any xsd is loaded into cache is creates
the dOMDocument with deafut properties( ProhibitDTD true) and given XSD is importing the older version XML.xsd from "http://www.w3.org/2001/03/xml.xsd which refers XmlSchemadtd.

Hence to resolve this error modified XML.xsd to use http://www.w3.org/2007/08/xml.xsd

IXMLDOMSchemaCollection2 ->Add method fails on 64 bit OS.

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