Wavelab 7 64 bit Version Not working with Windows 10 64 bit

I’ve just done the windows 10 upgrade to my WIN 7 64 bit system.
I I then ran the 7.2.1 WIN 8 patch64.exe which seemed like a large install.
When I try to start Wavelab, it instantly halts with the message:

‘The program can’t start because WMVcore.DLL is missing from your computer.
Try reinstalling the program to fix this problem’.

I reinstalled the 7.2.1 patch, but the problem persists.
Is this .DLL part of Wavelab, or has Win10 install killed it.
If it is Win10 problem, could someone please tell me where to
find it, and where to put it.
Thanks