As per "Exploring Chemistry with Electronic Structure Methods" 3rd Edition book, R.E.D tool are used to calculate MM charges http://upjv.q4md-forcefieldtools.org/RED/
However the download link is not working.
1) Do you recommend other downloadable sotware compatible with windows?
2) Do you recommend other tutorials to follow to perform ONIOM job ?
BTW, I am using Gaussian 09 on supercomputer (Linux shell) and gaussiaview installed on my windows PC.