The link posted at reply 31 provides product information for the version that works with 95/98. There is no "download this" on that page. There is no indication it's free.
The way I see it, you'd perhaps have to copy the link, and email Eset (click on the "store" page, which redirects you to your local Eset site, then "purchase", then "contact us") with a product inquiry, perhaps including the copied link.