What if software vendor does not exist anymore?

HiI tis quite strange question I supose. I have bought years ago PDF Batch by Dreamfiy. I have tried to reinstall it after system crash. I have backup copy of whole system disk, but I can not start windows due to hardware problems. How can I deactivate software from older machine whithout that machine and whithout support from software vendor, there is no support from Dreamfiy, company seems to does not exist.

This is a good question, but one we don't currently have an answer for (tricky legal questions in play). It's something we'll definitely address in the future, but in the meantime try to reach out to the former owner of the company and see if they can help you out.

Long story short: we can't do anything (we're not that company), but the company, or former officers of the company can help you.