You know, the one we receive after the user clicks “Send Error Report“ on the following dialog:

Uh-oh. It's time to visit the Microsoft Online Crash Analysis Web site

If you're an ISV developer and wonder if your company participates, check Participating Companies.

As a developer, you'll want to read more information on Windows Error Reporting for Developers.

BTW, if you're in a corporation or enterprise but would still like to benefit from that technology, look at the Corporate Error Reporting !