ippiCrossCorrValid_NormLevel_8u32f_C3R(...) gone?

Hello,

I have been using the ippiCrossCorrValid_NormLevel_8u32f_C3R(...) function in v6.1 x86 for a long time.

Now I must migrate to x64, and looked at ippi_2017.1.143. I realized that this function is no longer available :-(

Is there any way to achieve the same functionality, using the functions available in ippi_2017.1.143?

Is it possible to download a x64 version of v6.1 (is 6.1 available for download anywhere)?

Thanks for your kind support,

Niels