unable to find plugin 'OculusSpatializerFMOD

I have been trying to set up Oculus Spatializer to use with FMOD into UE (4.2.7 engine build we run from visual studio).

I can’t for the life of me figure out how to make UE find the plugin.

I have tried

*adding the plugin name under plugins settings menu>fmod

*Copying DLL to all binaries/platforms
*Copying DLL to engine>plugins
*adding a plugins.txt with plugin name inside
*generating project files and building

Can’t build the engine after I add the oculusspatializerplugin line to plugins