how can delete inactive useres automatically after 24 hrs in classic asp

[aaad]

I written a registration system in Classic ASP. user signup and will receive an activation email.I want to delete records ( users ), if user did not active their account by clicking on activation link was sent to after 24Hrs.how can do it?my users table have these rows ( I'm using Access):\[code\]UserID textUsername textPassword textEmail textHash textjoin_date date/timeactive Yes/No\[/code\]P.s: I've no access to IIS configuration beacause my website is stored on a public server and not on a dedicated one