The sample Delphi extension DLL can be found in the examples\delphi7 subdirectory. It is a Delphi 7 project, and serves as reference material for users who wish to write their own extension DLL using Delphi 7.
To compile, load softcopyex.dpr with Delphi 7 and build the project. The final output is a Win32 DLL called softcopyex.dll in the same folder.
Launch the GUI configuration tool. Select "Win32 DLL" as the DLL type, then click the "Browse" button under "DLL location", and select softcopyex.dll in the output folder. Finally, click the "Update" button to complete the installation.