> > For example:  HTTP://peach.ease.lsoft.com/scripts/wa.exe?RESET_COOKIE
>
> Is this different for the full version? Somehow I can't get it to
> work on http://listserv.surfnet.nl/scripts/wa.exe?RESET_COOKIE
>
> It results in some kind of errorcode like if it isn't implemented?
> Is this something that they can turn off? Or could I set it for our
> list? I have only listowner access.

An apparent typo on Ben's part, try:
http://listserv.surfnet.nl/scripts/wa.exe?RESET-COOKIE