NoteHKLM\SYSTEM\CurrentControlSet\Services\AtmUni\Parameters\Adapters\
Each <Adapter-GUID> subkey in Adapters represents a particular ATM network adapter and is named by the GUID of the adapter. The actual <Adapter-GUID> subkeys in your registry depend upon the ATM adapters installed on the computer or available to the system.
Some entries can appear in the AtmUni\Parameters subkey and in an <Adapter-GUID> subkey. If the entry appears in both locations, the value in the <Adapter-GUID> subkey takes preference over the value in the AtmUni\Parameters subkey when configuring that particular adapter.
Note
The <Adapter-GUID> subkey is a variable representing the subkeys under the HKLM\System\CurrentControlSet\Services\AtmUni\Parameters\Adapters subkey. It doesn't actually appear in the registry. This variable subkey displays the entries and subkeys that are common to many of the subkeys in Adapters.