private boolean validateStartMenuGroup() {
    NSISWizardSettings settings = mWizard.getSettings();

    if (settings.isCreateStartMenuGroup()) {
      String startMenuGroup = settings.getStartMenuGroup();
      String[] parts = Common.tokenize(startMenuGroup, File.separatorChar);
      if (Common.isEmptyArray(parts)) {
        setErrorMessage(
            EclipseNSISPlugin.getFormattedString(
                "invalid.start.menu.group.error", new String[] {startMenuGroup})); // $NON-NLS-1$
        return false;
      }
      for (int i = 0; i < parts.length; i++) {
        if (!IOUtility.isValidFileName(parts[i])) {
          setErrorMessage(
              EclipseNSISPlugin.getFormattedString(
                  "invalid.start.menu.group.error", new String[] {startMenuGroup})); // $NON-NLS-1$
          return false;
        }
      }
    }
    return true;
  }
  /** @param composite */
  private void createStartMenuGroupGroup(Composite parent) {
    Group startMenuGroup =
        NSISWizardDialogUtil.createGroup(
            parent, 1, "startmenu.group.group.label", null, false); // $NON-NLS-1$

    NSISWizardSettings settings = mWizard.getSettings();

    final Button createStartMenu =
        NSISWizardDialogUtil.createCheckBox(
            startMenuGroup,
            "create.startmenu.group.label",
            settings.isCreateStartMenuGroup(), // $NON-NLS-1$
            true,
            null,
            false);
    createStartMenu.addSelectionListener(
        new SelectionAdapter() {
          @Override
          public void widgetSelected(SelectionEvent e) {
            boolean selection = createStartMenu.getSelection();
            mWizard.getSettings().setCreateStartMenuGroup(selection);
            validateField(SMGRP_CHECK);
            NSISWizardContentsPage page =
                (NSISWizardContentsPage) mWizard.getPage(NSISWizardContentsPage.NAME);
            if (page != null) {
              page.setPageComplete(page.validatePage(VALIDATE_ALL));
              page.refresh();
              mWizard.getContainer().updateButtons();
            }
          }
        });

    final MasterSlaveController m = new MasterSlaveController(createStartMenu);

    final Text startMenu =
        NSISWizardDialogUtil.createText(
            startMenuGroup,
            settings.getStartMenuGroup(),
            "startmenu.group.label", //$NON-NLS-1$
            true,
            m,
            isScriptWizard());
    startMenu.addModifyListener(
        new ModifyListener() {
          public void modifyText(ModifyEvent e) {
            String text = ((Text) e.widget).getText();
            mWizard.getSettings().setStartMenuGroup(text);
            validateField(SMGRP_CHECK);
          }
        });

    Composite composite = new Composite(startMenuGroup, SWT.NONE);
    GridData data = new GridData(SWT.FILL, SWT.FILL, true, true);
    composite.setLayoutData(data);
    GridLayout layout = new GridLayout(2, false);
    layout.marginWidth = layout.marginHeight = 0;
    composite.setLayout(layout);

    final Button changeStartMenu =
        NSISWizardDialogUtil.createCheckBox(
            composite,
            "change.startmenu.group.label", //$NON-NLS-1$
            settings.isChangeStartMenuGroup(),
            (settings.getInstallerType() != INSTALLER_TYPE_SILENT),
            m,
            false);
    ((GridData) changeStartMenu.getLayoutData()).horizontalSpan = 1;
    changeStartMenu.addSelectionListener(
        new SelectionAdapter() {
          @Override
          public void widgetSelected(SelectionEvent e) {
            mWizard.getSettings().setChangeStartMenuGroup(((Button) e.widget).getSelection());
          }
        });
    final MasterSlaveController m2 = new MasterSlaveController(changeStartMenu);
    final MasterSlaveEnabler mse =
        new MasterSlaveEnabler() {
          public void enabled(Control control, boolean flag) {
            m2.updateSlaves(flag);
          }

          public boolean canEnable(Control control) {
            NSISWizardSettings settings = mWizard.getSettings();

            if (changeStartMenu == control) {
              return settings.getInstallerType() != INSTALLER_TYPE_SILENT
                  && settings.isCreateStartMenuGroup();
            } else {
              return true;
            }
          }
        };

    final Button disableShortcuts =
        NSISWizardDialogUtil.createCheckBox(
            composite,
            "disable.startmenu.shortcuts.label", //$NON-NLS-1$
            settings.isDisableStartMenuShortcuts(),
            changeStartMenu.isEnabled(),
            m2,
            false);
    ((GridData) disableShortcuts.getLayoutData()).horizontalSpan = 1;
    disableShortcuts.addSelectionListener(
        new SelectionAdapter() {
          @Override
          public void widgetSelected(SelectionEvent e) {
            mWizard.getSettings().setDisableStartMenuShortcuts(((Button) e.widget).getSelection());
          }
        });

    m.setEnabler(changeStartMenu, mse);
    m.updateSlaves();

    addPageChangedRunnable(
        new Runnable() {
          public void run() {
            startMenu.setText(mWizard.getSettings().getStartMenuGroup());
            changeStartMenu.setEnabled(mse.canEnable(changeStartMenu));
            disableShortcuts.setEnabled(changeStartMenu.isEnabled());
          }
        });

    mWizard.addSettingsListener(
        new INSISWizardSettingsListener() {
          public void settingsChanged(
              NSISWizardSettings oldSettings, NSISWizardSettings newSettings) {
            createStartMenu.setSelection(newSettings.isCreateStartMenuGroup());
            startMenu.setText(newSettings.getStartMenuGroup());
            changeStartMenu.setSelection(newSettings.isChangeStartMenuGroup());
            changeStartMenu.setEnabled(newSettings.getInstallerType() != INSTALLER_TYPE_SILENT);
            disableShortcuts.setSelection(newSettings.isDisableStartMenuShortcuts());
            disableShortcuts.setEnabled(changeStartMenu.isEnabled());

            m.updateSlaves();
          }
        });
  }