windows - Mirroring a folder without deleting files in destination less than n days old

I would like to mirror a folder, but only delete files in the destination folder older than 7 days.

Situation:

• Folder A is mirrored to Folder B.


• A file from Folder A is deleted

I would like for that file to remain in Folder B for 7 days. After 7 days the file would be deleted if it still does not exist in Folder A.

Current solution – in a batch file:

• Use robocopy with the /mir and /xx option to mirror Folder A to Folder B each day


• Use Delage32 to delete files and empty folders older than 7 days.

The problem is files (those I want to keep) are constantly being deleted and rewritten daily.

Is there a way to have the mirroring process look for extra files in the destination directory, and only delete them if they are older than 7 days? I would like to eliminate delage32.