VirtualBox Open Source Edition (OSE) is a general-purpose full virtualizer for x86 hardware. You have to create a vboxusers group, e.g. "groupadd -g 215 vboxusers" and make your user a member of that group. To enable the webservice pass WEBSERVICE=yes to the script. This will require gsoap as optional dependency. If you want to build the java bindings, pass JAVA=yes to the script. This will require zulu-openjdk8 as optional dependency. On x86_64, this by default builds without software virtualization. This means you need hardware virtualization in order to run 32bit guests on 64bit hosts. To enable software virtualization, pass SOFTWARE_VIRTUALIZATION=yes to the script. Note that this will require a compiler that can generate 32bit code, and thus will not build on a stock x86_64 system. This switch has no effect on x86 systems. If you want to attach VirtualBox to a VDE network you will need vde2. See README.SLACKWARE for some setup notes. Note to 32-bit users: VirtualBox no longer supports 32-bit x86, as of version 6.0.