Installed on multiple machines?
I remember my old boss buying one license and then requiring it to be installed on all the company's PCs. Ummm that is what is called piracy. Back then there was not a way that the license terms could be easily enforced. But rest assured that if you only purchased one license and then installed it on many computers you were pirating the software. Not legal, not moral not good for those who actually pay for what they use. Perhaps you just did not understand the terms of the license. After all, who can really read all that legal mumble jumble.