I was using AeroGlass for a long time on W8. After migrating (trough the store) to W81, AG no longer worked (specific message that I have forgotten). After reinstalling the 8.1 version of AG, it was apparently operating (glass border), but error windows indicating "This library can be injected into DWM process only" started to show up regularly. On the next shutdow, there was a system crash ; system reboot to W81 required to revert to a previous restauration point. After looking around, my problem was related to the fact that the old method (W8 one; through the "AppInit_DLLs" registry key) for