The site administrator can write and install a List Exit program. Details are in the 'Advanced Topics' documentation. >>> Patrick Renkens <[log in to unmask]> 01/20/10 6:07 AM >>> Hi All, This might look like a weird question but I like to ask it anyway. Is there a way to prevent listwoners from adding additional subscribers, but still let them change other options? Kind regards, Patrick Renkens Centre for Information Services (UCI) Radboud University Nijmegen, Netherlands