I wouldn't do that! MS Money on mine has an item under the File menu to save and restore the MSMONEY files.
If you make up your own backup system, then you get to fix it!
I am planning on reformating my hard-drive, but I have been using MS Money for about three years and I don't know where the backup files for this program are kept. Does anyone know where on the computer MS Money saves it's backup files so I can restore them after reformating?