Site 1:

Specifies the name and URL of a shared workspace. The name and URL appear in the Document Management pane.

Supported on: At least Windows Vista
Name:

Registry HiveHKEY_CURRENT_USER
Registry PathSoftware\Policies\Microsoft\Office\12.0\SharePointTracking\Name0
Value NameName
Value TypeREG_SZ
Default Value
URL:

Registry HiveHKEY_CURRENT_USER
Registry PathSoftware\Policies\Microsoft\Office\12.0\SharePointTracking\Name0
Value NameURL
Value TypeREG_SZ
Default Value

office12.admx

Administrative Templates (Computers)

Administrative Templates (Users)