I'm just FINISHING up my LATEST build and will be using vista, xp pro, and POSSIBLY linux and solaris a bit later. Has anyone used any multiboot software for both windows and non-windows operating systems? I would be intrested in any feedback or recommendations you would have. Thank you.Hope you don't mind me asking why would you want all of those operating systems and what would be the benefit of having all of them? I can understand having windows and linux but why would you want TWO different versions of windows?I would like to learn linux. As for xp and vista I realize that vista is the wave of the future but I know xp will run some programs I have , so I don't have to buy new ones with if I can use both.this came a from a Google search: Hack Attack: How to triple-boot Windows XP, Vista, and Ubuntu.  you can use "os selector" it support all os but i think it's for installing on win.
it's better to go to official web site of it.
also go to softpedia.com and search multi boot programs.
here is some free.Total COMMANDER....hands down.
Abit of a learning curve and NOT free but the best there is.http://neosmart.net/dl.php?id=1

OR

http://www.vistabootpro.org/

Use either if you install XP first; use VistaBootPro if Vista is installed first.

Have fun!