After click on the Excluded Application Titles menu item from the Options menu from the main form you will get this dialog show up. Click on the Insert button located on the toolbar and you will get another dialog as you can see from this screenshot. There you can select those Installed Applications you don't want to be included in the database when scanning a remote computers. You can add as many titles as you need, note: the list you will get is always from your local computer but you can always copy/paste to it and add. Click Next to continue.