id summary reporter owner description type status component version resolution keywords cc guest host 5347 VBox Addons incompatible with Windows NT 4.0 Multiprocessor kernel guest Michail "For reproduce. 1. Install NT 4.0 Workstation in VBox 2. Install Service Pack6a 3. Install VBox guest addons" defect closed guest additions VirtualBox 3.0.10 obsolete Windows Windows