Maybe this is something worth checking out? i got the link from trey boudreau a year ago. he seemed to think it was more worthwhile than OpenBeOS... www.eros-os.org i have zero experience with security related software, so i don't know the value of this, or its impact on performance. kind regards, Bruno. > ACLs are also slower to parse - you probably don't want to have them in > a high speed environment, such as ports and semaphores are. >