Preventing IE subscription

Anyone know how to prevent IE subscriptions from working on a site?

[richlowe]

I'm looking at my site, ways to reduce bandwidth, and I want to stop people from using IE subscriptions to download pages. I've been partially successful by looking for DigExt and MSIECrawler agents, but not 100%. Anyone have success at this? Richard Lowe

[Brett_Tabke]

Can we back up and explain to an nonIE user just what "subscriptions" are?