You can do it with .htaccess blocks.
See this for an example.
[Files foo.html]
AuthName "Insiders Only"
AuthType Basic
AuthUserFile /usr/local/web/apache/.htpasswd-foo
Require valid-user
[/Files]
(those brackets should be gt lt signs like html... but html is taken out of this post)
The whole tutorial.
HTH
[This message has been edited by DragonAss (edited 06-15-2001).]
[This message has been edited by DragonAss (edited 06-15-2001).]