...always create .elp file?

Full bug report (with screenshots, attached files, previous reports; it is usually stored packed inside a single .elp file) is generated only for sending. If you want to capture this file into local folder or network share, insert it into database, etc. even if sending was not performed (for example, user has selected "Do not send" button in a dialog) - then you can use this code:

uses
  EDialog,                // for RegisterDialogClassFirst
  EDialogWinAPIMSClassic, // for TMSClassicDialog 
  ETypes;                 // for constants
 
type
  // Subclass standard dialog class to alter EurekaLog behaviour.
  // Of course, you should replace TMSClassicDialog with another 
  // appropriate class if you don't use MS classic dialog style
  TMSClassicDialog = class(EDialogWinAPIMSClassic.TMSClassicDialog)
  protected
    function ShowModalInternal: TResponse; override;
  end;
 
{ TMSClassicDialog }
 
function TMSClassicDialog.ShowModalInternal: TResponse;
var
  X: Integer;
begin
  Result := inherited;
 
  // This happens when user clicks on "Details" link - 
  // one dialog has to be replaced with another
  if Result.SendResult = srRestart then
    Exit;
 
  // Create files to be send even if no send is used
  if (Failed(Ord(Result.SendResult))) or
     (not CanSend) then
  begin
    PrepareFilesForSend; 
 
    // Copy all files attachments to some folder.
    // Of course, folder must exist and be writable.
    // Usually there is only one file (.elp), but it can be few files - 
    // depends on your project options
    for X := 0 to FilesToSend.Count - 1 do
      CopyFile(PChar(FilesToSend[X]), 
        PChar('N:\BugReports\' + 
        ExtractFileName(FilesToSend[X])), False);
  end;
end;
 
initialization
  // Register our class to be used by EurekaLog
  RegisterDialogClassFirst(TMSClassicDialog);
end.

See also: