According to your description, i find some interesting message from this blog, it's says
"If you grab the latest installment of Microsoft Distribution of Hadoop you will notice, in addition to the C library, a Managed C++ solution for HDFS file access. This solution now enables one to consume HDFS files from within a .Net environment.
Do you ever grab the lastest installment of Microsoft Distribution of Hadoop now? If not, please try to install it first.
I already have invitation code and can login to hadooponazure.com. I have also gone through some of the samples.
My requirement is, I want to access HDFS files in my C# mapper EXE therefore I am looking for this download library. Unfortunately on the hadoop Azure portal I could not find required installment. The download section has only ODBC installments. In all of
the below mentioned section HDFS Managed Library
could not be found.