Hello,<br><br>I am trying to set up custom error pages for an IIS 4.0 server on NT 4.0. I would like to have a custom error page that the user is directed to if an asp error occurs. My understanding was that there should be an error mapping in the "custom errors" window to an error of type 500;100. However, I only see an errors type 500, 501, 502 etc. The 500;100 doesn't even appear as a option. Putting a page named 500-100.htm in c:\winnt\help\common\ where all the other error pages are doesn't help either. What's going on? <p>--Will Duty<br><a href=mailto:wduty@radicalfringe.com>wduty@radicalfringe.com</a><br><a href= > </a><br>