The manual way is to right click the taskbar, choose "Add Toolbar...", new toolbar, and select a folder.
We've got the folder pushed down via Group Policy, but other than walking around to each machine I'm at a loss on how to add the toolbar to the taskbar.
Thanks.
I'm fairly sure the settings are stored within a registry hive which would be possible to export and then write a script to add to a user's registry. Have a look at this.