Specifies the number of hours since a temporary file was last accessed before it becomes eligible for deletion. The default is 24 hours.
Additionally, you can set DelFilesOlderThanHours to 0 to force immediate deletion of all files matching DelFileTypes except for folders, read-only files, and files that are currently in use.
If you modify DelFilesOlderThanHours the change is picked up automatically at the end of the existing period. So, for example, if the current period is 24 (hours) and you change it to 1 (hour), the change will take effect at the end of the 24 hour period. The change will, however, be picked up immediately if you restart the Admin Service.