I can't seem to find a 64 bit DLL for this.  Does this exists or do I have to install everything else (.net framework 2.0, etc) to work with the 32 bit file that is supplied on the mach plugins site?

Think I figured this out.  Found this video, https://youtu.be/DBcDSom9HV8, which directed me to download the xinput1_3.dll.  After i did that, i still got the error message on startup, but I was able to go into Config>Config Plugins and the plugin appeared and I could enable it.  That error message is going to get old fast though. 

MarkMariani maybe you had same issue. I'm trying to put in the config window Product Id and Vendor Id. Everytime when i click OK and then return to the config there's still 0x0000 in PId and 0x0000 VId .