Corporate use of TLB

Yes this is possible. By default all menus, shortcuts and settings are in one folder (toolbar folder):

C:\Documents and Settings\<account>\Application Data\Microsoft\Internet Explorer\Quick Launch

But there are some difficulties to start TLB on every computer. The location of the toolbar folder and the toolbar positions are in the registry:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Streams\Desktop

So you can import this registry keys into user computer on logon. To prepare keys, make the right configuration on one computer log off/logon and export keys.

As I know Internet Explorer Administration Kit (IEAK) can be used to deploy toolbars configuration too.

Also you can disable to close TLB by using group policy.

I hope this help. Let me know if you have questions.