# CLIENT.CONTROL (CLIENT.CONTROL)
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The client control procedure provides a method for controlling the version level of the M3 Client programs installed on the workstations accessing the system. In some cases, particularly when a new version of the ACE host account has been installed, there may be restrictions on the client versions that can be, or should be, used to access the host. This forma allows you to specify the applicable version methods that may present problems and provide feedback to the user about what actions should be taken. You also have the option of dissallowing access in certain cases.
Frequency of Use
As required, but usually when installing a new version of the ACE host account.