With UAC on, Windows 7, some people (e.g. Robert Ball) have the problem that the script that creates the initial SchedulerData.mdb fails during installation because it's trying to write to Program Files, etc.
Even if you get past that, Scheduler won't run saying registry problems with license info, etc. Must shut off UAC.
With UAC off, there is still a problem where Scheduler will not exit. The window disappears after a "long" time, but a process "Scheduler.exe" remains running and has to be killed.