The AD synchronization program AntADSyncTool.exe is located at setup directory of BigAnt Console program as following. As default you can launch it from:
Double click to run the AntADSyncTool.exe
Specify your Active Directory account and password.
Click Next to continue.
And then you will see an icon at the system tray.
Select synchronize OU/users and/or Group/users.
OUs and users
Groups and users
Synchronize properties for an existed user account in BigAnt database.
Specify the synchronization interval.