No 412 for me , neither with the upper fix:
java.lang.NoClassDefFoundError: com.maddox.il2.objects.air.ParasolX
at com.maddox.il2.objects.air.ParasolY.class$(ParasolY.java:22)
at com.maddox.il2.objects.air.ParasolY.<clinit>(ParasolY.java:453)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at com.maddox.rts.Spawn.get(Spawn.java:39)
at com.maddox.rts.Spawn.get(Spawn.java:28)
at com.maddox.il2.game.Main.preloadAirClasses(Main.java:214)
at com.maddox.il2.game.Main3D.beginApp(Main3D.java:1735)
at com.maddox.il2.game.Main3D.beginApp(Main3D.java:1670)
at com.maddox.il2.game.MainWin3D.beginApp(MainWin3D.java:212)
at com.maddox.il2.game.Main.exec(Main.java:430)
at com.maddox.il2.game.GameWin3D.main(GameWin3D.java:235)
java.lang.NoClassDefFoundError
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at com.maddox.il2.game.Main.preloadAirClasses(Main.java:216)
at com.maddox.il2.game.Main3D.beginApp(Main3D.java:1735)
at com.maddox.il2.game.Main3D.beginApp(Main3D.java:1670)
at com.maddox.il2.game.MainWin3D.beginApp(MainWin3D.java:212)
at com.maddox.il2.game.Main.exec(Main.java:430)
at com.maddox.il2.game.GameWin3D.main(GameWin3D.java:235)
As Storebror wrote I don't use a different AutoDiffFM that the stock embedded SAS ModActivator 5.12....
EDIT
As stopgap I installed Epervier 409 Parasol pack 2 and got the NiD-52 working.
BUT
If you 'll use them REMEMBER TO UPDATE at the first 412 compatible version as it 'll be released because 409 version of the planes can miss a lot of new 410 onwards stuff (as also reported from Epervier in another 409 on 412 planes installatio tread)!!!!!