Need Script to archive files older than 90 days

I need a script that will take data older than 90 days from 2 folders and move it into 2 other folders on a network drive.

I tried doing this with robocopy using minage but I want to do it with something else since robocopy would only move data from one of the folders and not the other and I have spent way too much time trying to figure out why.. I havent been able to figure out why so I want to use a different method whether it be Xcopy, vbscript, etc.