<boolean id="msdos" _label="MS-DOS" arg-unset="-no-msdos"/>
<boolean id="amiga" _label="AmigaDOS" arg-unset="-no-amiga"/>
<boolean id="glados" _label="GLaDOS" arg-unset="-no-glados"/>
<boolean id="msdos" _label="MS-DOS" arg-unset="-no-msdos"/>
<boolean id="amiga" _label="AmigaDOS" arg-unset="-no-amiga"/>
<boolean id="glados" _label="GLaDOS" arg-unset="-no-glados"/>