in Delphi TIPS :: 
One of the nicest features of the "new" memory manager allows applications to register (and unregister) expected memory leaks, and optionally report unexpected memory leaks on program shutdown.
One of the nicest features of the "new" memory manager allows applications to register (and unregister) expected memory leaks, and optionally report unexpected memory leaks on program shutdown.
Read the full article to learn how to Detect Memory Leak on Program Exit
Related:
To Remove The warning
begin
{$WARN SYMBOL_PLATFORM OFF}
ReportMemoryLeaksOnShutdown := DebugHook 0;
Application.Initialize;
Application.CreateForm(TForm1, Form1);
Application.Run;
end.