Comment by ericol

Not sure if the same product. I think the one I used was Google Desktop.

I even hacked it for a company I was working for at the time: I installed it in a machine that had a lot of pdfs from some other client company of them.

I don't recall the exact details, but I did some sort of proxying between the Microsoft Web Server that came with NT? at the time and G Desktop, and then an entire team of first support agents had almost instant search across all those docs. Good times.