Raspberry PI and CAN HAT

Is is possible to use my CAN HAT for my raspberry pi to intergrade it in D2000
directly or send it over to a D2000 server running on windows?

I don’t know what interface that CAN HAT has. Is it represented by a [serial] file descriptor (like serial port /dev/ttyS0)? Or can it be accessed via some API?
Anyway, D2000 doesn’t support CAN protocol out of the box.
You could, however, use D2000 KomAPI to write your own protocol driver and integrate it into D2000 KOM. See D2000 KomAPI documentation.