64-bit Windows build failures

Issue: Coding error; longs are not 64-bits on 64-bit Windows.

[1]
SimpleHashPtr.cpp
..\..\..\..\..\tests\MemHandlerTest\SimpleHashPtr.cpp(32) : error C2440: 'type cast' : cannot convert from 'const void *const ' to 'long'
The target is not large enough

unsigned int SimpleHashPtr::getHashVal(const void *const key, unsigned int mod)
{
>> return ((long)key % (unsigned long)mod);
}

[2]

PSVIWriterHandlers.cpp
..\..\..\..\..\samples\PSVIWriter\PSVIWriterHandlers.cpp(1618) : error C2440: 'type cast' : cannot convert from 'xercesc_2_6::XSObject *' to 'unsigned long'
The target is not large enough

>> XMLString::binToText((unsigned long)obj, objLoc, 8, 16);