Hacked Mathcad 15?

My friend just bought, on some website, a copy of the "full version" of Mathcad15.

After he installs it, he runs some MC1 registration .exe file. The result is that he can run the software perfectly. But when you click on help/about, it shows the version number and everything, and has a name in the "licened to" field, but has a completely blank "product code" field.

So, this is some cracked/hacked version I assume? It seems that it should be able to be installed on any machine as often as one would like?

No, I will not give any more info on how to get the software. Even though I am not happy with what PTC has done with MC, I am not going to facilitate the stealing of intellectual property.

I am just curious if my interpretation of this is correct. Thanks.