Client on 2013.4 Advanced. Out of 10 Windows 7 workstations, 4 of them would not launch MAS this morning w/ ""Unable to create a session object"". error. Plus their 32-bit Windows 2008 32-bit T/S. Sophos AV. I actually found the KB on the new Portal! They re-ran WKSETUP to fix, but client is asking if anyone else reporting having this issue this morning. He suspects AV; THEORETICALLY all workstations have same AV, but . . . I told him I would ask around.