DirSync is configured using the WindowsAzureActiveDirectorySynctoolConfigurationWizard, or by using the DirSync installationshell. During configuration, DirSync creates the AAD_account in the UsersOU of the root domain in the ActiveDirectoryforest. DirSync then uses this service account to read and synchronize localActiveDirectoryobjects to WindowsAzureActiveDirectory. The DirSync Configuration Wizard sets up recurring synchronizations to occur every three hours.