>3. If there's no license agreement then it means that before reverse-engineering the software, authorization from the legal owner should be obtained. If for whatever reasons you can't reach the legal owner than you can't reverse-engineer the software.

Hi Denis
India is far away and their communication is not in that level like Canada and ammerican ones.
That's why Indians usually "can't reach the legal owner" , but they need to reverse-engineer the software and do it. :-)