Outlook Anywhere cannot be disabled in Outlook 2007 and in Outlook 2010

In updated versions of Microsoft Office Outlook 2007 and of Microsoft Outlook 2010, the Outlook Anywhere feature cannot be manually disabled. It is automatically enabled if the functionality is available in your Microsoft Exchange Server organization.

If you manually disable the Connect to Microsoft Exchange using HTTP option for Outlook Anywhere, the option is re-enabled when Outlook is restarted or when the next Outlook AutoDiscover process runs.