An alternate way people get files onto their server or emulated server is to either create your own iso image file with the files you want to transfer. If you do this, there is a good chance the OpenVMS file attributes will be lost on your Windows (or Linux) system. To compensate for this, copy the files onto your OpenVMS disk (from the iso) and set the attributes:

bck:
$ set file file.bck/attribute=(lrl:32256,rfm:fix)
sav:
$ set file file.sav/attribute=(lrl:32256,rfm:fix)
pcsi:
$ set file file.pcsi/attribute=(lrl:8192,rfm:fix,rat:none)
txt:
$ set file file.txt/attribute=(rfm:STM) or (rfm:STMLF)