2 of my extremely old cd keys don't work on bnet anymore. I used sandbox to run multiple versions of D2 at once.

I bought new 26 character keys.

Now my problem is I can't figure out how to redownload multiple versions of the game again, as I did it years and years ago.

I've tried renaming the DL directory, and moving it. But nothing has worked. If any other sandbox users out there can help me out that'd be great

I don’t think anyone here can help you with instructions on running multiple clients at once. That’s against Blizzard TOS.

https://us.battle.net/forums/en/bnet/topic/20745095739?page=1#9.

Read this please

They have updated terms of service about 20 times since 2016.

They won’t support it nor do they encourage it as it is a 3rd party application. No one here is going to be able to help you. Sorry and good luck.

Thanks for all the pm help. Those who posted..thanks for the +1's.