http://bugs.winehq.org/show_bug.cgi?id=8461
------- Additional Comments From truiken@gmail.com 2007-23-05 18:37 ------- The installer calls MsiSetMode(MSIRUNMODE_REBOOTNOW) and then runs the custom action ISForceReboot. This custom action returns 1604, which is ERROR_INSTALL_SUSPEND. Wine should take this return value and 'reboot', then run the install again after the reboot.