Another instance of IE opens?

Hi all,

When ever I open my Internet explorer, another instance opens with the address on the adderess bar "http://540.filost.com/randomsites/banne... to do?

Another instance of IE opens?windows firewall

Ha your bust with a spyware or BHO.

Download an antispyware.

Another instance of IE opens?microsoft frontpage internet explorer

I agree with puneet. It's a adware, try to download free adware/spyware remover. you can get it from www.download.com and search for spyware. Or you can install antivirus software that has firewall and spyware/adware detection to avoid future intrusions