Can't register older version

[DisAid]

Any idea why I can't register my older (v5.0) of precision mapping?

[DisAid]

Never mind (answering my own question). I read the error message from their registration site carefully, and it clearly says that that version is no longer supported. I had it installed on an older system and was going to try to run it, but it *is* a very old version, so it makes sense.