Just a little snippet from the article may get you thinking

How did I come about such an exploit you may ask?  Downloading actor images, and meta data via the MetaBrowser utility!  I never imagined I would run across an exploit in such a way but there is also a good chance that it’s just a false positive.  I don’t blame MetaBrowser for it but should we be concerned?

about the need for an AV solution for your WHS.  You may not access the web through a browser on your WHS, but if a utility like My Movies for WHS looks for meta data, it might just grab more than it intended.

Food for thought…

Source Article:
Does WHS need AV? Here’s a Good YES Reason

To use this new feature make sure you’ve got the latest version of Media Browser, from the forums at mediabrowser.tv, installed. Also, be sure that your content has been properly tagged with the ratings metadata. To do that you can use the popular metadata tool MetaBrowser (or any other tool of your choice that supports the ratings tag). Make sure that each movie or piece of media in the collection contains a proper rating to ensure that your parental control selection will be effective.

Inside MetaBrowser you can set the rating of each listed item by selecting the title in the left hand pane then adjusting the MPAA Rating dropdown to the appropriate rating for each movie. Be sure to press the Save Metadata after each movie has been edited to be certain your selection is saved to the metadata of that movie. Remember, the parental controls will only be as effective as the ratings employed in the collection.

Once you’ve assigned ratings to your media collection it’s time to open up Media Browser’s configuration and setup the parental controls feature. Inside the configuration program be sure to select the Advanced options selection from the top to enable the extra options then open the new parental controls tab. Here you can set the maximum rating allowed to be viewed by everyone in the household as well as the pin number to unlock content.

You also have the option to hide blocked content until the pin is entered. This will remove all titles from the listing that are above the maximum rating until pressing the “lock” button on the main Media Browser window, next to the configuration wrench, and entering the pin number. Unchecking this option leaves the titles in the listing and will prompt for the pin when attempting to play the content. Also included is the option to unlock all content for a period of time once the pin number is entered. This will keep you from having to repeatedly enter the pin while using Media Browser for extended periods but also makes the system vulnerable should you leave the machine unattended in that time.

That’s all there is to it! Just re-launch your Windows 7 Media Center and start up Media Browser to see the new parental controls in effect. There are sure to be many happy parents happy to see this feature added to the Media Browser plugin and the ease of setup makes the system even more effective though the lynch pin here is still in the rating system itself. You need to be certain that your entire collection is properly tagged before the system becomes effective.

Source Article:
Using Media Browser’s Parental Control Features