Kindly go through the terms and conditions as you might have signed such a document on line. Normally the software is in built and may not function after that contract date, and certainly, they must give advance notices frequently like other service and network providers.
If you have purchased the software then you can upgrade the software and manufacturer can't stop upgradation till expiry. You first contact the support division and complaint to them if they don't support you can file complaint in consumer court.
I am grateful for prudent replies. Several softwares are installed in my computer and I have been getting it updated by paying good amount, but as I have stopped practising I did not update them with the result that I could not access the software, so I have to request them to allow me access, and they did. But I was under impression that since I have paid full amount at the time of installation and then updation charges every year, naturally I have paid good amount of the software during all these years, they may have copy right of the soft ware, but they cannot restrict my access.so I wanted to have guidance on this subject. At the time of installation no contract was signed between us. I think this problem could have been faced by others also so if any brothers have any insight on this subject I requested tobe enlightened and guide me. thanks for support of other expert members of this great LCI platform.