SharePoint 2007 developers (MOSS 2007 / WSS 3.0) need a handy way to get to the 12 hive. The 12 hive is the location that contains the SharePoint installation. It is located at “C:\Program Files\Common Files\Microsoft Shared\web server extensions\12”.
On way is to add a toolbar. To add one first open the 12 hive folder in windows explorer.
Grab and drag the folder icon in the address bar with a left mouse button. Drag it down onto your to the right hand side of the taskbar just to the left of the notification area. Let go of the mouse button and you will see you new tool bar to the left of the notification area.
By clicking on the >> you can view and open all the folders in the 12 hive.
