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Is it perhaps "msdb"? "The msdb database is used by SQL Server, SQL
Server Enterprise Manager, and SQL Server Agent to store data,
including scheduling information and backup and restore history
information." (SQL Server 2000)

If that sounds like something you will make use of, then Books Online
has tips on backing it up. If that information isn't useful in your
disaster recovery plan, don't bother - you can use this database to
manage backups and automated maintenance, but you can do without it,
restore your customer's data onto a newly installed server.

We presume your customer's data is in a specially created database and
not in one of the built-in ones.

I suppose database creation date also is likely to reflect whether the
database was created during installation of SQL Server, or when you
started using it. But if the database was yours, then you'd know,
surely?

Is someone else keeping data on the same server?

I believe this is the database that Arcserve backup for windows uses.
Its a product by Computer Associates.
HTH
Rob
(open it up. if you see tables like asfilename, ashost, asjob,
asjobmap,
then this is what it is)

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