The index options used in the AddIndex method of the TTable component are table specific. For example, the ixUnique option works with dBASE tables but not Paradox. The following table shows how these options apply to dBASE and Paradox tables.

              Index Options         dBASE    Paradox
              ---------------------------------------
              ixUnique               *
              ixDescending           *        *
              ixNonMaintained        *        *
              ixPrimary                       *
              ixCaseInsensitive               *