>  You mean that in the C:/myfilters.txt i can have 
> sometbing like this
> -*.*
> +www.web1.html
>  .
>  .
> +www.webn.html ?
Yes you can - note that -* is generally used as 'exclude 
all' (even is there is generally a dot somewhere in the URL 
anyway - such as the . in .com :) )