Do you know the project MyOpenLab?
MyOpenLab uses dll to k8055 of Velleman.
The author has also integrated Arduino (and Arduclema) libraries using serial communication.
It may be interesting to create a dll to be used by MyOpenLab. You can also comment on the forums of the project MyOpenLab.
We also want to program graphically Arduino (and Arduclemas;)) from MyOpenLab through Java.
Pretty interesting. I think I'll have alook into creating a dll this weekend.