I too observed that, which has got Status as SAME negative value on all databases on a server. I have read it in MS site that I contains the ER diagram info pertaining to that DB where it resides, and exporting this to another similar DB would result in transfering the diagram too. Also read about users who are unable to create diagrams, should have relavant permissions on this table. So I am sure it is system created table, when one tries to relate a table with another.
1) I created a New DB (no dtproperties by default)
2) Created 2 new tables (no dtproperties by default still)
3) Created a diagram, to relate those 2 tables. (Found dtproperties table created in the db now with some rows in it) But can't make you what those rows mean, form the data stored in it.
- Vijay G
Strive for Perfection