[Files]
Source: "EULA_ANSI.txt"; DestDir: "{tmp}"; Flags: dontcopy nocompression

[Code]
function InitializeSetup: Boolean;
var
  EULAText: AnsiString;
begin
  Result := not WizardSilent;
  if not Result then
  begin
    ExtractTemporaryFile('EULA_ANSI.TXT');
    if LoadStringFromFile(ExpandConstant('{tmp}\EULA_ANSI.txt'), EULAText) then
      Result := MsgBox(EULAText, mbConfirmation, MB_YESNO) = IDYES
    else
      MsgBox('Unable to display EULA.' + #13#10 + #13#10 + 'Installation terminated!', mbCriticalError, MB_OK);
  end;
end;