The question says it all.
这个问题说明了一切。
I had a QA site and PROD site on a Win 2003 server with IIS 6. I moved the sites to a new server, Win 2008 R2 with IIS 7. On the new server, I set the app pool to 2.0 for the two new sites. I tested the sites a bunch before updating the DNS to point to the new server and the sites were working fine. So I sent my client an email letting them know they could update the DNS to point to the new server.I had
