Okay, one more question. What does the "write boot sector" option do for an OSS boot option? In all the ones that OSS detected itself, it set this option to on. But in an earlier modified bootwiz.oss that MudCrab gave me where entries for some OS's were added manually, he set this option off on the ones he added manually. So should this option really be on or off? Does it really make a difference? This is purely XP and Vista I'm working with if that makes any difference. Thanks again!