How to use microsoft's Dynamics AX classes?

How to use microsoft's Dynamics AX classes?

I am new to the reporting and .net I have completed report using the SSRS
but now i want to add the Barcode into the report.I already have one web
service which is generating the Barcode image for me but for only
data-matrix format now i want to write the method in that web service
which will get me the Barcoded image or string I have searched and came
across the
Microsoft.Dynamics.AX
Classes but i have no idea how to use them msdn also not provided any help
with it so my questions are
1) Is it possible to use the Microsoft.Dynamics.AX classes in to the web
service?
2) If possible how to add references any links will be helpful ?
3) If not then any other way for it ? any links will be helpful ?
I know there is lot's of third party tools but i am wondering whether is
it possible to do it by self coding ?Thanks for the help in advance .