So my Internet security just automatically deleted mmf2d3d9.dll from my computer after detecting it as a possible threat (UDSangerousObject.Multi.Generic). Now, of course, Fusion doesn't work properly anymore. I guess the dll in question is used for Direct3D 9.
I have no idea why it just now decided that it was a 'problem', but either way I need to fix this issue. What's my best course of action? Is there a way I can just re-download that specific dll file?