The activation code with Elicenser is not used anymore except for Windows XP and OSX 10.6
Most of your issues about activation code are because the version you are installing with the DVD is obsolete ( 1.6)
Here's how to proceed in order to install your soft on a new computer without activation code:
1) Download the installer of your instrument + The Arturia Software Center (ASC):http://arturia.com/support/updates&manuals
2) Install your software and the Arturia Software Center.
Open the ASC, type your Arturia's login and password, and click on the 'Activation' button located next to your instrument.
3) /!\ /!\ Then update your instrument through the ASC /!\ /!\
--> Or it will keep asking for an activation code
4) Finally you can try to open your software. It should work perfectly if you didn't skip any step. (Don't forget to update step 3)
I already talked about this issue here:
I hope that your issues will be solved asap.
Do not hesitate to send me PM if necessary.