You need to replace 4 cgauth.dll files:

Inside Rhino/System folder
Inside ProgramData/ASGVIS/VfR564 or ProgramData/ASGVIS/VfR532 folder - depends on your System type
Inside ProgramData/ASGVIS/Common/x64/vc10/Render Spawner or ProgramData/ASGVIS/Common/x32/vc8/Render Spawner folder - depends on your System type
Inside ProgramData/ASGVIS/Common/x64/vc10/Distributed Rendering or ProgramData/ASGVIS/Common/x32/vc8/Distributed Rendering folder - depends on your System type

If you are still under XP OS, use Documents and Settings/All Users/Application Data path in place of ProgramData folder

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