inno-setup - downloading files over the internet, if the component has been selected (WITH Inno Tools Downloader)

Question

This code actually download me the files and it does not matter whether the selected component is "test" or not. I want those two files download, if you select a component, can do that? I use Inno Inno Setup 5 + Tools Downloader)

[Components]
Name: Dictionaries; Description: "test"; Types: Full; ExtraDiskSpaceRequired: 50;

[Languages]
Name: english; MessagesFile: compiler:Default.isl

    #include ReadReg(HKEY_LOCAL_MACHINE,'Software\Sherlock Software\InnoTools\Downloader','ScriptPath','');

[Code]
    procedure InitializeWizard();
    begin
     itd_init;


     itd_addfile('http://www.sherlocksoftware.org/petz/files/dogz5.zip',expandconstant('{tmp}\dogz5.zip'));
     itd_addfile('http://www.sherlocksoftware.org/petz/files/petz4.zip',expandconstant('{tmp}\petz4.zip'));


     itd_downloadafter(wpReady);
    end;

    procedure CurStepChanged(CurStep: TSetupStep);
    begin
     if CurStep=ssInstall then begin 
      filecopy(expandconstant('{tmp}\dogz5.zip'),expandconstant('{app}\dogz5.zip'),false);
      filecopy(expandconstant('{tmp}\petz4.zip'),expandconstant('{app}\petz4.zip'),false);
     end;
    end;