I am a public school teacher and have a question about software we purchased at least 15 years ago for use on our school computers. Approximately 10 years ago the software company stopped producing the software. Within a couple of years the company was bought out by another company. The software in question is also not produced by the new company. My question: Can I make copies of the old software and distribute to my students for use in my class? This would be done at no charge to the students.