I found the problem described above using the 13.6 version.
My subscription was expired on 25/10/2014, then I think that I should be able to download the fix released on 7/7/2014.
Today I’m able to download only the latest version of the dll. Obviously now the dll tells me that my subscription is expired.
Can I download directly the version released on 7/7/2014? I can’t renew the subscription now.