Unresolved external when using Visio Wrapper?

[Scott Metzger]

VC++ .Net 2003 compiler
using visiwrap.h
MFC Dialog Application
Added Include and Source directory for the Vision SDK to my Include path
for my project

This is the only code I have added

#include "visiwrap.h"

void COldMFCVisioReadDlg::OnOK()
{
CVisioApplication app;
vaoGetObjectWrap(app);
}

I get the following error at link time:
LNK2001: unresolved external symbol _vaoGetObject

Any ideas?

Thanks,
Scott Metzger