Disabling    wr/R  Disabling the Econet interface
EcoLink1     wr/R 
EcoLink2     wr/R 
IP           DL/   Econet over IP and IP over Econet
ISOLayer/doc wr/R  ISO networking layers in Econet (MSWord)
ISOLayer/txt wr/R  ISO networking layers in Econet (Text)
MachTypes    wr/R  Machine Types returned from Immediate_MachinePeek
RISCiX.txt   wr/R  Acorn Unix Econet Device Driver and Network Device (Text)