----------------------------------------------------


Clear all entries on hosts file and unblock.exe:
C:\Windows\System32\drivers\etc

127.0.0.1        www.techsmith.com
127.0.0.1        activation.cloud.techsmith.com
127.0.0.1        oscount.techsmith.com
127.0.0.1        updater.techsmith.com
127.0.0.1        camtasiatudi.techsmith.com
127.0.0.1        tsccloud.cloudapp.net
127.0.0.1        assets.cloud.techsmith.com

Copy and set RegInfo to read only:
C:\ProgramData\TechSmith\Camtasia Studio 9

Launch the application.