don’t know I don’t have MSE currently installed, and never noticed that when it was, anyway: http://www.fileinfo.com/extension/vdm (avoid the free scan link on that page ;D )
sounds the biggest issue here is people seem to be willing to have MSE on board (resident or not) at all cost, just because it’s a Microsoft product, and they feel it should belong to a Windows install, just like Defender did…extremely subjective ;D The other thing is that MSE is good (from misc reviews and tests), and people forget that even if it’s good, even if it’s an MS product, they should make a choice and not have two AV installed, and also stop hiding their “concerns” behind the pretext of layered security