ReactOS 0.4.11-dev-338-670a7ac7188f4912a48a50bae4d275f2f21e1810 - installing AC97 VBox driver hangs on searching the driver.
After clicking "Cancel", closing devmgr and trying to reboot or shutdown - the system can't turn off correctly:
Without installing the driver, ReactOS turns off correctly.
In 0.4.11-dev.337-161b6728ef4522a069e2a6375fc2d1a39b683aa5, the driver installs successfully and the system turns off correctly also with the driver installed.
Tested on the clear ROS installation, only Wine Gecko 2.40 was installed.