need quick help regarding .htaccess file

[ashutariyal]

Hello friends .. i just need your quick help about .htaccess file

today i have received a mail from my host to block a url http://dl.mydomain.com/CoverScout 3.2.5-Torrent

i am using http://dl.mydomain.com/ for redirecting (301) to affiliate link of nowdownloadall.com means when you type http://dl.mydomain.com/ it will redirect you to http://nowdownloadall.com/your-file.asp?PID={mypidid}&q=

so mate please help me to block this url through .htaccess http://dl.mydomain.com/CoverScout 3.2.5-Torrent

Thanks & Regards,