ADP Paycheck Downloader
You should probably use https://github.com/andersonvom/adp-downloader instead as ADP has been redesigned after 9 years of the old site and this will no longer download your paychecks.
Python script to download paychecks
adp.py username [password]
ADP's website has some JSP craziness that only allows you to view one paycheck at a time. Additionally, their notification emails don't actually send you the paycheck, but rather just link to the site.
This python script will download all your paychecks to folders in the current directory, one folder for each year, skipping the files that are already downloaded.
It is a total hack and may stop working, but you may also find it useful.