In which directory should rewire.dll be in Windows 10 64 bit?

I found this rewire dll in C:\Program Files\Common Files\Propellerhead Software\Rewire
Hope this helps

I have no idea where it should be. I found it in C:\Windows\SysWOW64

I had a look in there as well after your suggestion Scook but I didn't find one. I kind of thought that I would have another one somewhere because I also use Sibelius 7.5 and I think it has the ability to use rewire ax well. I might be wrong.
That syswow64 folder looks pretty scary. What does it all do?
Cheers  from Oz

I did find the dll in "C:\Program Files\Common Files\Propellerhead Software\Rewire" too. I have not bothered to keep up with Windows in years.