Didn't you read my message?
Both SAS and MBAM is freeware, but IF you want realtime protection you have to pay. But you can use both as freeware if you want.
If you want an Antispyware program with realtime protection you can use Spyware Terminator -
http://www.spywareterminator.com/Antispyware in avast is ok, check the frontpage of
www.avast.com about an test:
avast! antivirus rated "++" by AV-Test
The independent testing body AV-Test has released the results of a major comparative test of antivirus products, covering detection rates for various types of malware. In the tests, avast! antivirus detected over 99% of all malware types (and more than 98% of adware and spyware)See the page for an link to the testresults.
But for me, I also want an dedicated antispyware program. But that's me...other may disagree.