From what I've found, it depends on what you are trying to schedule. On an old Win98 machine, I had a sound file that would fire at a particular time (an alarm clock sort of scenario).
When I upgraded that machine to XP Pro, that same scheduled task would not fire. After some research, I found that the only way it would work is to ensure that a password is used to log on to the PC.
http://support.microsoft.com/default.aspx?scid=kb;en-us;311119
MBN
When I upgraded that machine to XP Pro, that same scheduled task would not fire. After some research, I found that the only way it would work is to ensure that a password is used to log on to the PC.
http://support.microsoft.com/default.aspx?scid=kb;en-us;311119
MBN