dual and multi booting

i want to do it. but i already am. but i didnt install it. some one did it for my mom. i kinda have a general idea. but tell me if it right. if not tell me the whole process in ur words. here is HOW I THINK HOW TO SET IT UP DUAL BOOTING

first partion ur hard drive
second put the iso file in a dvd.
out the dvd inside the computer
restart
when u start up ur pc it press whatever key to get into the bootmenu
then choose the dvd to boot from it
press enter
then it will ask u what drive to install it in
choose ur drive u want. the partion drive
go throught setup
after it done. restart
at the bootmenue iit will ask u what os
choose the new one
prss enter
should boot right?

i have never done this. so correct mee

Sounds like you got the right idea.

Which operating system will you adding ?

Which is the operating system installed now?

SIW2

i have vista. and i want to add xp. i bought it. cuz it was cheap!! and faster. and efficent

Ok, there is a very slight complication installing XP after Vista.

If you install an older o/s after a recent one, the old one doesn't know the recent one exists.

You will not be able to boot straight into the more recent o/s.

I would use Vista Disk Management as per this tutorial :

Install Windows XP on Your Pre-Installed Windows Vista Computer :: the How-To Geek

you can get VistaBootPro from here free :

VistaBootPro | System Resources Tune-Up. Download | PC World

or you can do the same with Easybcd :

Installing XP After Vista - NeoSmart Technologies Wiki

Hope it helps

SIW2