If you were using it in 1975-1976, it wasn't FTP as it exists today - it would be the FTP implemented on top of the "old" ARPANET protocols (sometimes referred to as "NCP", but I believe more properly referred to as simply "Host-to-Host Protocol"). But that reminds me of a question I had while I was having lunch today ... Was there ever an implementation of the old ARPANET protocols on a PDP-11 or VAX Unix? If it ever existed, I'd guess it would have had to have been on top of Seventh Edition, but I can't recall ever seeing any drivers for an ACC LH/DH or DEC IMP-11 on any incarnation of that platform. Berkeley Unix added TCP/IP in 4.1a, but I don't remember if there had been any ARPANET support (for the old protocol) before that. --Pat.