This is a bit drastic but it might be what you need to do.
Have all users exit Sage MAS 90 or 200.
If running Sage MAS 200 as service, stop the service.
Open Start / Settings / Control Panel / Administrative Tools / Services.
Scroll down the list and locate the 'Sage MAS 200 [port number]' service. Right click and select 'Stop'.
If running Sage MAS 200 as an application exit the 'Application Server Configuration' program
Open 'Windows Explorer' or 'My Computer' and browse to the ..\..\MAS90\MAS_SYSTEM directory.
Rename the SY_CONSOLE.M4T file.
Note: It will be recreated as users begin to log back into the system.
If an error message "Cannot rename SY_Console: There has been a sharing violation." occurs right click on the 'My Computer' icon and select 'Manage'.
Click the Shared Folders / Sessions directory and remove all active sessions going to Sage MAS 90 or 200.
Do the same with the Shared Folders / Open Files directory.
Open Task Manager and verify that PVXWIN32.EXE is not listed in the 'Process' tab.
If it exists, highlight the process and click 'End Task'.
Open 'Windows Explorer' or 'My Computer' and browse to the ..\..\MAS90\MAS_SYSTEM directory.
Rename the SY_CONSOLE.M4T file.
If the "Share Violation" message still occurs, reboot the server to release the locks.
If this is a Sage MAS 200 server running as a service, the service will need to be set to manual prior to rebooting.
Open Start / Settings / Control Panel / Administrative Tools / Services.
Scroll down the list and locate the 'Sage MAS 200 [port number]' service. Right click and select 'Properties'.
Set 'Startup' to manual then reboot.
When server comes back up, open 'Windows Explorer' or 'My Computer' and browse to the ..\..\MAS90\MAS_SYSTEM directory and delete the SY_CONSOLE.M4T file.
Sage MAS 90 users can now begin to log back in.
For Sage MAS 200 server running as a service:
Open Start / Settings / Control Panel / Administrative Tools / Services.Scroll down the list and locate the 'Sage MAS 200 [port number]' service.
Right click and select 'Properties.'
Set 'Startup' to automatic and then click the 'Start' button