Hi there Didi - long time no speak. I don't know - the question was asked on behalf of a development company working for one of our customers, and I don't know the platform they are using.
Most likely is Unix or Windows David Instructions for managing your mailing list subscription are provided in the Listserv General Users Guide available at http://www.lsoft.com Archive: http://vm.akh-wien.ac.at/MQSeries.archive