Thanks Marco & everyone!

@Mik - re:
> I dont't know why, but I cannot find in moi.ini 3dm settings: [3DM] Version=

It should be near the end since it's a new setting, but also it will only get added when it has been accessed at least one time which happens when you save a .3DM file. If you still don't see it you can add it in like this:

[3DM]
Version=4

Do you need to write a Rhino v4 .3dm file instead of a Rhino v5 .3dm file?

- Michael