REGEDIT4

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Directory\shellex\DragDropHandlers\NonDefaultDropMenuVerb]
@="{c18f21bf-bfc0-44c2-85b0-104a60cecea6}"

[HKEY_CLASSES_ROOT\CLSID\{c18f21bf-bfc0-44c2-85b0-104a60cecea6}]
@="Sample Drag&Drop Extension"

[HKEY_CLASSES_ROOT\CLSID\{c18f21bf-bfc0-44c2-85b0-104a60cecea6}\InProcServer32]
@="NonDefaultDropMenuVerb.dll"
"ThreadingModel"="Apartment"