KnowledgeTree database successfully exported to:

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Start new MySQL service

In order to complete the upgrade process, start the Zend Server MySQL service and then click Next to continue (Click here for help).

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[START MENU] => [Programs] => [KnowledgeTree 3.7.x] => [Mysql]
Right-Click and run [Start Mysql] as administrator, if applicable, or
Click [Start Mysql] #Ubuntu
sudo /etc/init.d/mysql start
#RedHat
sudo /etc/init.d/mysqld start