By using the /S and /M options, XCOPY can be used as an alternative to the
BACKUP and RESTORE commands, and it is usually faster.  Also, XCOPY can do
more with subdirectorys than BACKUP. 

The copied files can be restored to a hard disk with the XCOPY or COPY 
commands (but not RESTORE), or even used directly while on the backup 
diskette. 

However, XCOPY is different from BACKUP in several ways:          
	XCOPY cannot backup files larger than a single diskette, while BACKUP
		can.
	XCOPY does not delete all files on the destination before commencing
		a copy operation (as BACKUP does without the /A option), so 
		the destination diskette should be formatted and empty of 
		files and directories.
	To backup ALL the files on a disk using the /M option of XCOPY, the 
		ATTRIB command must be used to first set the archive attribute 
		before executing XCOPY.
