> A help desk ticket was referred to me this afternoon involving Listserv.
> The problem is that Listserv has associated an incorrect name for a
> particular list owner's email address.  I assume I need to ask the user to
> re-register his email address on Listserv. Right?

This will remove them from the signup file:

Register OFF FOR address

> What I would like to know is if there is any way I can issue a command to
> scan Listserv's sign up files for a given address to see what information
> has been recorded for a given email address.
>
> For example, I can use the scan command to query a specific list for a
> given address or portion of an address. Is there a similar utility for
> signup files on Listserv?

No, you would have to do this locally on the files themselves.

> Also, as a value added service, it would be nice if I could re-register
> this subscriber's email address for him, rather than asking him to do so.
> Is that type of thing possible?

Register name FOR address