program fpvectorialconverter; {$mode objfpc}{$H+} uses {$IFDEF UNIX}{$IFDEF UseCThreads} cthreads, {$ENDIF}{$ENDIF} Interfaces, // this includes the LCL widgetset Forms, fpvc_mainform { you can add units after this }; {$R *.res} begin Application.Initialize; Application.CreateForm(TformVectorialConverter, formVectorialConverter); Application.Run; end.