This is for a very basic backup plan. Imagine that a full copy of c:/myfolder (and all its sub-folders) has already been created at d:/myfolder. Is it possible to use Robocopy as a daily/weekly job to:
simply copy any new files to d:/myfolder, that is any files in C:/myfolder (and all its sub-folders) that aren't already in d:myfolder (and the corresponding sub-folders),
but if a file in c:/myfolder/subfolder already exists in d:myfolder/subfolder, make a new copy in d:myfolder/subfolder with, for example, the date or an indexed version number appended to the filename