You could also download and install..
by ZombieVirus - 3/29/12 1:47 AM
In Reply to: Please help! Can't remove malwarebytes file mbamext.dll by guest user
Download and install MBAM. (from malwarebytes.org) It's an awesome malware detecting / removal software.
Just remember, some malware "trick" the anti-malware software into requesting a reboot just before it get's quarantined. If you receive a pop-up in MBam requesting a reboot *before* the software actually finished scanning and quarantining, do not say yes to it. Click no and allow it to do it's job.
I use it and it's never failed me.