Automated/scheduled *zip file download from website URL

Hello, I would like to download only *.zip files from the domain [login to view URL] in accordance to the following behaviour: > every <<XX seconds>> the desired solution is to compare all the *.zip files at <<URL>> page against all the files in local directory <<DIR>> and download only the ones that are missing > the <<XX seconds>>, <<DIR>> and <<X>> fields are to be user customisable (examples below) Note these *.zip files are typically published every 5 minutes, but the files are needed promptly after they are published so I expect this script will be checking as frequently as every 15-30 seconds, possibly less. The solution once started will need to run unattended on an ongoing basis. Example: <<URL>> [login to view URL] <<DIR>> c\zzz <<XX seconds>> - 15 seconds I was considering using Selenium IDE Chrome add-in but happy to look at other options. Thanks :) Sorry - I should add that I am planning to run this in a Windows 10 environment on a laptop/desktop PC. Assuming the above works well .. then I may need the solution to work for multiple URL's in the same domain .... .... all the possible subfolders are listed here (of which the one I listed above is just one) [login to view URL] ... I may need to run the same script for several (say 5-15 or 20 of the above subfolders) (or several different versions of the same script but configured for seperate folders/URLs)