msxml in a mfc regular dll

Hello everybody,
I was wondering if any one could help me out.
I am presently working on a project that uses xml and dlls. Both new technologies to me.
I started off fine with this wonderful article
http://codeguru.earthweb.com/xml/XMLDOMFromVC.html
and I was making headway.
Now I had to move the implementation to a dll, so that in the dll the client can access a function which will parse or create the xml file based on stuff I learned from the tutorial.
But I am not making any progress.
Anyone who has dealt with xml and dlls please help me out.
Thanks
pvarkey