Haven't used LabView before, so I don't know exactly what you are talking about. Where do you know from, that h3dInit fails? If it really fails Horde would normally write the reason for the failure into the EngineLog file (or to the Debug output that may be accessible through DebugView's "Capture Global Win32"
). "'invalid node handle in h3dsetnodetransform" is not a reason for a failure in h3dInit because during the initialization there's no call to h3dsetnodetransform. So it must be called afterwards by your code.
Regarding your updated Beta5 binaries: There is already a binary package at source forge for the beta5 dll's.