The patch was only for Crystal Key 2, and I assume it was only meant for Nvidia cards as it was named ck2_nvidia_us.zip and unzipped to crystalkey2_nvidia_patch.exe.
I downloaded it from
here.
Jenny100 commented on this patch in an earlier thread last week. You can read her comments
here.
To Draclvr, I made a similar report about Last Half Of Darkness - Shadows of The Servants on Windows 7 last month which was never added to the Windows 7 thread.
Here is a link to that earlier report.