https://bugs.winehq.org/show_bug.cgi?id=44032
--- Comment #5 from Steve Soule sts33nvyb@gmail.com --- xardas01: Yes, there is a fix, though it's not a convenient one. As I wrote above, you need to compile non-staging wine 2.21 with one patch from wine-staging 2.21: the patch "kernel32-SetFileCompletionNotificationModes". This one patch is necessary for Blizzard App to work. You can't use full wine-staging 2.21 because it includes a patch, the patch "server-send_hardware_message", that triggers this mouse-downs-register-as-mouse-clicks problem. Unfortunately, compiling wine for yourself is not trivial.