UserLock monitors all login and session events, automatically applying custom policies to permit or deny logins, workstation access and usage/connection time. UserLock sets this kind of stringent access control entry by restricting user logons according to customized user access policies. This includes the maximum number of simultaneous workstations where a user can be logged on and the total interactive sessions (workstations and terminal) allowed. Users can choose the type of restrictions made and the level of granularity offered.”]
Source: https://informationsecuritybuzz.com/news/better-windows-network-security-control-user-access/