R
radug_329
Hello everybody,Many years ago (~Win. 2K) I developed for my company a monolithic, user-mode, plotter driver that supports HP/GL 1. It worked perfectly (recompiled and digitally signed, of course) until two days ago when some of our customers applied the patches mentioned above, KB5039211 and resp. KB5039212. There is no error message (EventViewer shows nothing) but the HP/GL commands are simply not there. Could someone (who is familiar with device drivers development) explained to me what happened ? We have thousands of applications installed around the world that rely heavily on that piece
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