VirtualBox is free and open source, the windows guest additions piece is not. However, they’re both available for free download from the same site and they do not make any distinction between those two (at least at the time, haven’t looked). They were waiting for companies to download the guest additions piece and going after them to shake down licensing fees. While I don’t recall/know exactly, it seemed like they were almost exclusively going after companies they already had commercial relationships with to add more licensing fees to existing contracts. So yes, from my perspective they were shaking down customers after trying to entrap them with ambiguous free downloads. They had the legal right to do so, but it felt in bad faith.
VirtualBox is free and open source, the windows guest additions piece is not. However, they’re both available for free download from the same site and they do not make any distinction between those two (at least at the time, haven’t looked). They were waiting for companies to download the guest additions piece and going after them to shake down licensing fees. While I don’t recall/know exactly, it seemed like they were almost exclusively going after companies they already had commercial relationships with to add more licensing fees to existing contracts. So yes, from my perspective they were shaking down customers after trying to entrap them with ambiguous free downloads. They had the legal right to do so, but it felt in bad faith.