Visual 2005 ReportViewer Doesn't Work With MSSQL 2000

I was trying to connect a 2005 WinForms ReportViewer control to a SSRS 2000 report server and I kept getting an HTTP 404, even though the url was correct.

Apparently it’s not supported.

The error message did say “Make sure this report server is compatible with the ReportViewer” but I think that’s something that they should just come out and tell me.  I mean, come on… ReportViewer 2005 can easily recognize that I’m connecting to a 2000 report server.

I had to spend 20 minutes searching the internet to get a definitive answer.  Hopefully this will save someone some grief.