I thought it worked now without warnings.. ?
if not, deactivating the respective Non-PnP-driver for avast shield(s) should finally crack it
Or maybe Vlk can come up with something else..
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I'm not advertising Norton, but it shouldn't be impossible to use avast on-demand together with it..
(I had a similar problem with avast-OA & AVPE-OD once, but that got solved, too)