NT/Win2K/XP Pro do a bit better with VLARs than 9x/ME in relative terms. They're all bad, but the former to lesser of a degree. Roelof Englebrecht (Setispy author) did some graphs charting VLARs on different windoze systems and confirmed the differences... In general, non-windoze clients will process VLARs faster (as they should) than mid-ARs.
Setiqueue's VLAR redirect will shunt VLARs to any client it finds that is non-windoze. If all you have is windoze, you're sortof SOL with Setiqueue as Ken Reneris hasn't yet found a way to redirect the WUs to different windoze OSes. 🙁