Here are a couple links to answer your question: Where Does Windows Save Taskbar Toolbar Configurations? Programatically Create A Toolbar On The Windows Taskbar Restore Internet Explorer and/or Windows Explorer toolbars How add/remove entries in Taskbar's toolbar menu Kelly's Korner - Registry Tweaks and a Taskbar Repair Tool You can also use the Group Policy Editor to affect some changes if you have XP Pro. Start/ Run/ gpedit.msc and go to User Configuration/ Administrative Templates/ Start Menu and Taskbar. Have fun.
