Thanks, guys. As you say, Office XP works well on Win7, or the contained Word does anyway, which is all that I wanted, and Apache's thing is working on Win10, so I am squared away for wordprocessing.
HOWEVER,I have just connected the laptop(W10) to the television set because I have inherited a lot of out-of-region DVDs, and what do you know? There doesn't seem to be a DVD player program on Win10!
I should explain that I live in NZ(region 4) and my set-top box plays region 2 and region 4, but some of the DVDs are region 2.6, wherever that is. In these days of throw-it-away, I don't know anyone around here who can regionally unlock the spare DVD player, either.
I get very irritated when changing op systems. Amiga, Win 98, 98SE, Win2000, back to 98SE, XP, and now this lot. Oh hum.