Lotus recommends that you build or update a source directory catalog by running the Directory Cataloger on a schedule enabled in the Domino Directory 'Server' document. You can also immediately build or update the source directory catalog using the console command:
tell dircat quit
...and then issuing the command:
load dircat filename
...where 'filename' is the name of the source directory catalog. Do not choose Task->Start->Directory Cataloger from the Server Status tab of the Domino Administrator to immediately build or update a source directory catalog; this tool does not allow you to specify the file name for the directory catalog.