Installation instructions for STDynArray:

Copy STDyn.*, STDynAry.PAS, STDynAry.DCU, STDynAry.DFM and STDynAry.DCR
to a directory of your choice that is on your Delphi search path.

STDynAry can be used both as a class (STDynArray) and as a component
(TSTDynArray).  If you wish to use STDynAry as a component, install 
STDyn.DPK.

DO READ THE STDynAry.Hlp FILE.  THOROUGHLY!  Even if you are familiar
with how DynArrays work in Paradox it is important that you understand 
how they are allocated and de-allocated in order to avoid memory leaks.