ATI Stream SDK on non-AMD machines
It seems the ATI stream SDK installer doesn’t install anything but the OpenCL profiler on machines with no AMD/ATI hardware. Running the MSI’s from “C:\C:\ATI\SUPPORT\streamsdk_2-0-0_XXXX\Packages\Apps\” folder seems to install OpenCL (CPU only, of course) support for me.
Note: I originally found this solution on geeks3d.com.