It worked for me here. Maybe you don't have the full SDK installed. CVI installs some base SDK files even if you do not install the full SDK. If you installed the full SDK, you should see over 300 header files in the cvi\sdk\include directory. If you don't see this, you should reinstall CVI and check Windows SDK to install. If you do have it installed, I'm not sure what could be causing the problem.
Best Regards,
Chris Matthews
National Instruments