is it possible open multiple d2r on same computer?
if yes, is it allowed? (dont like to get banneded)

Ops, nvm!

This post was edited by Orvar on Jul 4 2022 09:13am

It is possible yes

ISBoxer and ProcessExplorer can be used but not sure if theyre 100% ban-proof (ISBoxer needs certain options turned off to avoid ban)

The 100% ban proof method would be individual computers or Virtual machine running individual copies.

I followed this guide: https://forums.d2jsp.org/topic.php?t=87513729

As long as you are not inputting actions from 1 account and copying it to another to perform 2 actions with 1 click you should be fine. You must pay for 2 different licenses though.
In order to open the lower panel for process explorer you need to hit Ctrl+L

This post was edited by CrackerSJ on Jul 4 2022 09:38am

Yes it is and easy to handle