Bandai Namco have officially DMCA’d the Dark Souls mod DSFix 2.3.
The mod brought back framerate unlock, a feature that went missing from the game when the devs took it off GFWL. To be clear, Bandai Namco did not contact them directly, but did so via Dropbox.
Here is an excerpt from that letter:
We’ve received a notification under the Digital Millennium Copyright Act (“DMCA”) from BANDAI NAMCO Games Germany GmbH that the following material is claimed to be infringing:
https://www.dropbox.com/s/ddwbdpd3qgm9upk/DSfix23.zip
Accordingly, under Section 512(c)(1)(C) of DMCA, we’ve removed or disabled access to the material that is claimed to be infringing or to be the subject of infringing activity.
As a result of this notice, public sharing on your account has been disabled. We will reinstate your account’s public links if you remove the file(s) listed above from your account.
This also comes days after the game’s debugger got leaked, so Bandai Namco may take legal action regarding its distribution as well.