Simple server-client programm to monitor users activity on domain computers. It is writes users logon and logoff time on computer. It requieres .net framework 4. OS must me win 7 or higher, forest level must be 2008 or higher, olso you must have installed mssql (not lower then 2008, it may be mssql express). More desctiption about this programm is on my blog - https://www.sanglyb.ru/logon-logoff (it is on russian language).