From what I've read on the Internet and on various websites, the PDM_DDM9000 has some connection with the HTTP servers. It's some kind of a module required for other applications to work. I tried to gather as much information as necessary without luck because of foreign language websites and because of lack of explanatory details.
However, I have seen that the DDM9000 is also used as a Document Data Manager which means it has something related to documents and the way they're managed in a company/network.
