Thanks Fan Z. I should have been more specific....The robot.txt file would not be needed for any of the remote web pages you log onto with the user name and password.... Any of the User account pages would not need this either. Actually, I noticed that the log on pages already have robot.txt files in those pages. Ther is no concern here....
This really only applies to New Public web pages created on WHS either by manually creating them with say Frontpage or when using Andrew Grant's Whiist--Windows Home Server Add-In. These new pages do not require a user name and password to view and are accessable just like any web page on the net as long as your WHS is turned on. I would like to keep Google, MSN, Yahoo and many other bots from finding and scanning my new Public WHS hosted pages and then having them show up in search engine results. That's all. No biggie, but some of us may want to prevent this and a robot.txt file in the root folder of these newly created pages will prevent your weekend pictures with your family showing up in Google searches...
It's not that these public pages are out there screaming "scan me...scan me," but over time they could be.
Now, Andrew is planning to give his Whiist--Windows Home Server Add-In the ability to create Private web pages that do require a viewer to log in. A robot.txt file would not be necessary on these pages......
Hope this clears things up...