Im sorry that i dont understand most of them cause im new in batch files but i also want to backup & zip some files, lets say:

"C:\program Files\winzip\wzzip" -a -p -r C:\BACKUP\BACKUP.zip "C:\Program Files\ahead\*.*"
copy C:\BACKUP\BACKUP.zip K:\BACKUP\BACKUP.zip

i run this batch every day and i want to verify that the backup is done, otherwise prompt me with an error message
possible?
I think that the best way is to compare the date that the backup was run with the date that the backup.zip file is modyfied. that was a thought but i dont know if is the best way

thnx in adnvance