This attribute defines the time period (in minutes) after which the cached work queue that waits to be handled by the WIS process is cleared from the cache, starting from the time at which the client who last accessed this work queue logs off.
This attribute is used in conjunction with the WIS_CACHE_THRESHOLD attribute. If the cached work queue contains a number of work items that equals or exceeds the value of the
WIS_CACHE_THRESHOLD attribute, it cannot be cleared from the cache by using the
WIS_UNCACHE_PERIOD attribute.