load xml

I am trying to use the load xml in MSXML2.DOMDocument object - but it's not working on one particular workstation. I tried to register that ms xml 6.dll that I used to compile the project, but still not working and it's working everywhere else. What else am I missing?

Line of code. I would not post all the code because it's working every workstation except one. So I know the code is working.