Automatically Toolbars are added in MS-Outlook

Recently I faced this problem, When ever I used to open a new email in Outlook One more standard toolbar used to added to my toolbar list. which can be removed from the view and cannot be deleted.

To fix this problem I have followed this approach. All the toolbar customizations are stored a file called "outcmd.dat" under C:\Documents and Settings\%username%\Application Data\Microsoft\Outlook. After deleting this file the problem has been fixed.