Securing non-asp.net files - nightmare

Hi,
I was following the tutorials from this two sites:
http://www.15seconds.com/issue/070104.htm
http://aspnet.4guysfromrolla.com/articles/020404-1.aspx
Following the first site, it had worked but when I´ve moved the pages and files to other folders and set the web.config file on this folder, now it won´t work at all!!!
The file is an *.swf object. I did put the asapi.dll to map the extension on the website root, I´ve put the
<httpHandlers> <add verb="*" path="*.swf" type="System.Web.HttpForbiddenHandler" /> </httpHandlers> on the web.config new folder and on the web.config website´s root.
It won´t work!!! I can access the file directly!!!
on the web.config of the folder that contains the ...