My expoler or mozira every time like in 1 minute give me that messenger in link web Error (http://milehighads.biz/bc/123kah.php) so I can't get how to stop it so help me please

Is it always the same link,

What is the exact error message

Any changes that either happened or that you perhaps made to your computer around the time that the problem started; particularly any Software or Hardware that you installed or setup.