On another topic, its very fun to run the FTPSRV on and old machine and remotely "play" with it while you are away from home or at work. This got me thinking about more ways in which one could do this. For example, say you wanted to remotely run programs, or compile code on your vintage computer -- how could you do this?
One crude way came to mind (which may or may not work) but involves:
1) uploading a text source code file to your machine running FTPSRV from a remote location;
2) issuing a command to re-boot the machine;
3) having an AUTOEXEC.BAT which takes care of running a compiler on your source code, i.e., COBOL compiler, or MACRO ASSEMBLER;
4) downloading the finished executable program from the FTPSRV.
Of course remotely debugging and viewing error messages from the compiler might be tricky (could these errors be placed in a text file to be downloaded?).
Anyway, just a thought on a cool project that would be fun to work on.