Deprecated Tasks
From PresenceWiki
Tasks can be flagged as "Deprecated" to indicate that they are no longer in use or have been replaced.
Deprecated Tasks will be displayed with a faded out icon in the Task Explorer:
http://www.international-presence.com/wikidocs/images/deprecated_tasks.png
Alternatively, they can be hidden altogether by selecting the "Hide Deprecated Tasks" option in the Edit View Dialog.