If you think getting a license without internet access is difficult, try getting a replacement with internet access after the computer crashes. I had to rebuild my computer from the ground up after a malware attack. Everything came back together as I worked on it except the MathCAD license. Unlike most other software companies, PTC doesn't have a mechanism in place to automatically deal with problems like this. Their license system just tells the customer that the maximum number of licenses is reached and to go buy (yes, buy!) another. These guys at PTC don't answer email. Their voicemail is on infinite loop. It's just plain impossible to contact them. And I'm stuck with not being able to use a license that I paid for.