SQL does not think dtproperties IsMSShipped

One of our SQL databases thinks that the dtproperties table was created by a user.  We are using the objectproperty(sysobjects.id, 'IsMSShipped') and it is returning 0 for this table.  All of our other databases come back with a 1 on that table.  Interesting enough you can not delete the table as it tells you that you can not drop a system.  We have some queries that are using that flag and it is returning some funny data from this one database but I don't know why it is screwed up to begin. I could just change the query to ignore the table but there is no fun in that.  Anybody know how to fix.
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Anthony PerkinsCommented:
Take a look at this link:

And all the warnings and related links there.

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Microsoft SQL Server

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