Screen reader for Windchill applications

Hello,

I am a blind student at the LMU in Munich and in the upcoming semester we will have a project together with a big international acting german industrial company that uses Windchill. The company uses the front ends or clients that use embedded browsers (CEF or internet explorer). From a short test I was not able to use the accessibility functions so my screen readers where not able to connect and read out the content of the application like buttons, labels and so on.  

How does other people with disabilities use Windchill? Is there a way turn accessibility in this front ends on? 

Kind regards,

Hans