Migration Tool
Absolute nonsense, don't waste your money! It's true that it doesn't move all the add on staff, you have to uninstall first and then reinstall, but on the other side, without this program I am not sure you would be able to install it at all again.
And I get to pay for the privilege. Everything from freeware Pipers to the most complex addons will appear in Prepar3D.
Migration Tool - Everything installed there - no matter if by hand or using installers - will appear in Prepar3D. I will now have to uninstall this rubbish and reinstall my flight sims.
I just want to offer a word of advice. After two complete installs and adding numerous add-ons and then uninstalls of v3. Bottom line, something does happen somewhere in P3D after I use the tool. Maybe I'm the only one, but trial and error has told me it's time to give it up and stick with what actually works with P3D v3. Sadly that does mean giving up some of my old friend aircraft and airports to get the superiority of P3D. Some Software will Not work in Prepar3D proven by even The Migration Tool users. I just miss the ultralight to go sightseeing in the P3D terrain with the Orbx add-ons, and itch to get back into a 757 or the B-737. In other words a civil matter, not criminal. Which is to say nobody found guilty of such is going to prison. Still not a great idea though. Regardless, I too wish the Level D 763 would get ported but the developers have said they have no such plans.
Note: The tool is not to be used to circumvent the developer's licensing requirements. Install your product and re-enable the folder if necessary. Pete I figured it out. I'd use it with caution. So, why is it useful? Now I have got a P3D installation that throws up dialogs saying it can't find things. It also comes with the night scenery, with surrounding buildings in artificial light. I think you don't know where're you, you are in thepiratebay, you aren't in the apple store. On the ground, you'll feel bumps, dips, pavement grooves, braking forces, and hard landings.