servlet and authentication

[huy . nguyen]

Hi all,

I had writen a servlet which will purpose to validate usename and password when the 
user try to open a web folder connection to the server.  Is it possible for me to 
register this servlet in the web.xml so that the server will load up this servlet 
anytime an authentication is needed?  If so, can you show me how to do so?  Thanks.

Huy-