Hi,
I have more 8 years of experience in product development using C, C++ and Qt.
I have successfully build the dll using Visual Studio 2010 and I can send you the VC proj file, but how will you compile it using VS2010 Express edition ?
Remember express edition does not support x64 configuration, you need do some tweaking to get x64 configuration working. I hope x64 environment is available with you.
Regards,
Dushyant