[Dx4win] ADIF import: header

[Andy]

  Hello. I created an ADIF version of my own log [log.adi] and I used this
ADIF file successfully to upload my log to the LoTW project.
  However, when I try to import log.adi file into DX4Win 6.02 I got the
error: No header found;
and no QSO is read into DX4Win.
  It's true that I have no header ... however I don't know exactly how to
generate this header; I'm using an home made logging software so I need to
develop it for ADIF support.
  May someone send me an example of header for an ADIF file suitable to
import in DX4Win, please?
I think you can generate this header if you own a registered copy of DX4Win
[my copy is a demo].
Thanks a lot, 73

Andy