As we discussed offline, let's stick with /include and /exclude with single or comma-separated categories for now in NUnitLite. The category Expression implementation can be commented out or suppressed by #if. Make sure to do the same for any support classes. Since NUnitLite doesn't have any category support right now, this limited support will be a plus and we can avoid adding a feature that we would probably remove later on. On Sat, Apr 27, 2013 at 10:19 AM, Tyrel Alastair Hunter <