Thanks people. I tried the windows/command drvspace files. Unfortunately I need to make a DOS 6 boot disk & only have Win 98 available. Is bootdisk.com a web site? I'll see if I can find it...
I have used doublespace then drivespace on an XT with DOS for years. It's still running (crawling?) happily. At least DOS has help about command line switches - even if a bit terse.
Tried using the Win 98 boot disk + the drvspace files but @#$%! Microsoft have seen fit to make the current version require Windows to run AND have removed info in 'help' on command line switches. Jeez they're frusting. 'Help' only guides you to which Windows button to click. Talk about 'Help' that doesn't!
Looks like I need to get hold of the DOS help file that has command line switch info. The 386 still has the files (hidden, read only, system) but I can't remember the commands.
I think I'm getting closer to moving to Linux.