The AD synchronization program AntADSyncTool.exe is located at setup directory of BigAnt Console program as following. As default you can launch it from:
C:\Program Files\BigAntSoft\BigAnt Console
Double click to run the AntADSyncTool.exe
Specify your Active Directory account and password.
Click Next to continue. Select users and departments you want to import.
OUs and users
Groups and users
Synchronize properties for an existed user account in BigAnt database.
Specify the synchronization interval.