>Does anybody know of this problem ?

No I don't, but there's simpler ways to get table information. When I've
needed field names, I've used a TIB_Cursor with a SELECT * statement, and
after preparing (no need to open) just used the
TIB_Cursor.GetFieldNamesList method to populate a string list. There should
be similar methods or properties for getting other table information.

HTH,
Set