Hi Edward,
If your user ID connection to the Remote Desk Session has admin rights, you will be able to open the Task Manager as mentioned above, and simply go the the Details Tab, and sort by user or by application, and highlight the task that needs to be closed and close item by clicking on End Task button on the lower right bottom of the window.

Do so with care, because this will end any task without checking on whether the user is posting or not. Normally, you can tell if the session is active with the CPU % moving around or memory useage is moving around or looking at the I/O activity. If you close an active posting session, you will normally corrupt the data.

We often see these phantom user sessions within Gridview that somehow doesn't always close out the session when the process has ended for the workspace.

For most of our client sites that we support on Remote DeskTop, we insist with the IT that we have that ability to End Tasks, which is far superior to rebooting the server.

If the specific issue relates to a Printing job that is lost in the Twilight Zone, you can also open up services on the server, and stop/restart the Print Spooler, which will kill reset all queued print jobs. Again do so with care, because there may be valid print jobs in the print queue that need to be printed and may need to be reprinted.

As Dan has suggested, if this is a recurring issue with users not signing out of their sessions which can happen with situations of many remote uses, the shortcut sign out icon is a good suggestion to reduce the frequency of open Adagio sessions when users need to end their session.

For large sites, we also do the Windows script to close our all users window sessions every night but that still does not close out the phantom Adagio users.

Best,
Brian