I don't think you can. I know I can't.
This is a job for the people who make the software. It's been going on through enough updates and revisions (on both the Avid and Steinberg sides) that one MIGHT think it OUGHT to have been taken care of some time ago.
Have yet to see any sort of comment or recognition of the issue on the Steinberg side. We've been complaining about this for more than a year.
It's apparently harmless (at least I haven't had any corrupted files due to it.. yet), but it's a major aggravation. Either crashes on quit, or hangs, necessitating a force-quit about 90% of the time. I've had my Nuendo quit without crashing or hanging exactly once in the last two weeks.
No problem at all on the laptop with no EuCon.
FIX THIS!!! Please.
N6.5x, C4, Halion, UAD-2s (Quad PCI and Satellite), Fireface 800, UR-22, MC Control, Mac(s) 10.9.x, 10.8x, 16G