Today (9/5) Symantec pushed an update to my Norton 360 anti-virus (malware, etc) program. It immediately removed MZA64.dll (Adware.mezaa). Also, on 8/30 it removed MZA.dll (Adware.BL). My computer seems to be running much, much better. This half-way fix I had achieved from Malwarebytes and manual removal had left Explorer hanging often. Also the computer was caught accessing 168.95.1.1 (dns.hinet.net) several times a day. This is a reported high volume spamming organization. Malwarebytes did catch this outgoing access and block it. Those accesses appear to have stopped now too.
In short, if you think you are infected by Mezaa I would have to recommend both Malwarebytes and Norton.
Dr.Bri B (My system is Win7, 64 bit)