Memory leak parsing XML file

I got severe memory leaks when i parse XML Files with DOMParser class and using
DTD validation.

Here the simple main() routine of the test application:

void main()
{
try

{ // Initialize DCM Environment (includes XMLPlatformUtils::Initialize()) cout << endl << "Initializing DCM environment..." << endl; DCMEnvironment::InitEnv(); cout << "successful" << endl; }

catch(MissingEnvVariableException& e)

{ cout << endl << "Failure during initializing DCM environment!" << endl; cout << "Reason: " << e.getDescription() << endl; return; }

catch(ParserInitializationException& e)

{ cout << endl << "Failure during initializing DCM environment!" << endl; cout << "Reason: " << e.getDescription() << endl; return; }

catch(ModulesInitializationException& e)

{ cout << endl << "Failure during initializing DCM environment!" << endl; cout << "Reason: " << e.getDescription() << endl; return; }

catch(...)

{ cout << endl << "Failure during initializing DCM environment!" << endl; cout << "Reason: unknown" << endl; return; }

// run the test
testLoad_ImgSequence();

// Clean up DCM Environment (includes XMLPlatformUtils::Terminate())
Diamant::DCM_L::DCMEnvironment::ExitEnv();

int result=0;
result = _CrtDumpMemoryLeaks();
}

Here the parsing method:

void testLoad_ImgSequence()
{
ImageSequence* imgSeq=NULL;

int count=0;
while(count<100)
{
try

{ imgSeq = new ImageSequence ("d:\\Repository\\Is\\", "flicker.xml"); }

catch (InvalidParameterException& e)

{ imgSeq=NULL; }
catch (DatafilebaseNotUniqueException& e)
{ imgSeq=NULL; }

catch (ParserErrorException& e)

{ imgSeq=NULL; }
catch (XMLFileIOException& e)
{ imgSeq=NULL; }

catch (...)

{ imgSeq=NULL; }

// clean up
if (imgSeq!=NULL) delete imgSeq;

cout << "ImageSequence loaded." << endl;

count++;
}
}

With each creation of a ImageSequence instance the given XML file is parsed and
some attributes in DOM are read:

ImageSequence::ImageSequence(...)
{
//...
// now load the image sequence data from xml
DOM_Element imageSeq = _XmlDocument.getDocumentElement();

// did we have a image sequence?
if(imageSeq!=NULL)
{
DOM_NamedNodeMap ISAttributes = imageSeq.getAttributes();
DOM_Node attribute;
DOMString attrName;
DOMString attrValue;

char* attrNameVal;
char* attrValueVal;

for(int32_t count=0;count<ISAttributes.getLength();count++)

{ attribute = ISAttributes.item(count); attrName = attribute.getNodeName(); attrValue = attribute.getNodeValue(); attrNameVal = attrName.transcode(); attrValueVal = attrValue.transcode(); // initialize the attributes of the image sequence if (!strcmp(attrNameVal,"FPS")) _Fps = atoi(attrValueVal); //... delete attrNameVal; delete attrValueVal; }

}

The instrumentalized the Xerces Debug Lib with the Boundschecker and got a lot
of memory leaks, e.g.:

QName::QName(QName* const qname) constructor:
line: fLocalPart = new XMLCh[fLocalPartBufSz + 1];

unsigned int ElemStack::addChild(QName* const child, const bool toParent)
method:
curRow->fChildren[curRow->fChildCount++] = new QName(child);

etc.

I hope you can give some comments immediately.
Thanks in advance.