Based on this, a fully updated anti-virus solution used in conjunction with MBAM (free) is a good place to start when it comes to stopping infections. Many members of this forum use SuperAntispyware. It, along with MBAM, are two apps highly rated by many IT outlets and users. The applauds, which occurred when SuperAntispyware introduced its portable version, can still be heard today. MBAM and SuperAntispyware make a great 1-2 punch, and the desire for a portable MBAM has only increased due to SuperAntispyware's portable release. I understand the licensing issue that would be created if MBAM Free had a portable version, since it would probably not take long for someone to 'create' a portable version of MBAM Pro. Obviously, there are features of MBAM Pro that are not part of MBAM Free, but if a portable version is released, applauds would last a long time.