How can I enable this for one of my clients?

Create a .htaccess file in the client's /web directory that looks like this:

ErrorDocument 401 http://www.yoursite.com/authorizationRequired.htm
ErrorDocument 403 http://www.yoursite.com/forbidden.htm
ErrorDocument 404 http://www.yoursite.com/fileNotFound.htm

Thanks man...

Hi..
I tried to put on my /web directory a .htaccess file with this code :

ErrorDocument 401 http://www.mysite.com/401.html
ErrorDocument 403 http://www.mysite.com/403.html
ErrorDocument 404 http://www.mysite.com/404.html

but when I want to enter to my site appeasr an error of configuration... and I can't enter :(

Somebody can help me?

Regards
Fabian

Maybe posting your URL might helps a little bit. I advise that you start a new thread for this.

I get the feeling this thread would loop nicely into this one:
http://www.webhostingtalk.com/showthread.php?&threadid=11771