by RoJeC on 17 Mar 2015, 16:34
Hi, Welcome to MixVibes,
The serialnumber should be on the sleeve of the CD.
If you maybe registered it in the past it may be possible to retrieve, also if you maybe used a different e-mail address.
The Free version doesn't support MIDI.
You may try the Demo version meanwhile. This has almost all functions of the full version, but for a limited period.