SteveWh - 1:57 am on Oct 23, 2011 (gmt 0)
To expand a bit further, the main complication is that all the folders and subfolders in your site that start with an _underscore belong to FrontPage. It creates new files in them, or modifies files, or deletes files anytime it feels it's necessary, with no warning to you.
Before you start taking steps to remove webbots, anything in those folders that you are going to need in the future (such as the already-created button images for your link bars) must be copied from those folders into your own non-underscored folders, and all the links to those items throughout the site should be adjusted to point to the new location rather than to the old _underscored folder. Then if/when FrontPage deletes its _underscored files/folders, it won't make any difference because you're already using your own set of them.