HereForTheBeer: Are these your games? If not, do you have permission from the rights holders to distribute them?
Of course I have permission - it's shareware! :-)
I'm no different from any other distributor of shareware titles in history - and there's a whole lot.
HereForTheBeer: And do you provide information in the package to contact the rights holders so they can be paid?
I give the player an option to view read.em files and such. The contact info is often there. A lot of the games have the info before and after the game, too. That said, the info they provided 20 years ago might no longer be valid.
HereForTheBeer: Not trying to throw water on the fire, but shareware assumed that the user would pay for the titles.
Hey, I'm not stopping anyone from paying. But I think it would be a bit unusual to try and pay for those titles several decades after they were posted on some BBS. I mean, I could imagine myself doing it for the sheer insanity, but with a straight face? Really?
Myself, I see it as a legally safe style of abandonware, since the shareware status grants me permission to share the stuff.