can vista installed on computer without dvd attached

Is the only way to install it via a DVD attached to the computer it is being installed on? Is there any way to install it via a network?
I have a Dell Inspiron 9200 "Desktop Replacement" (wouldn't call it a laptop, too heavy for that, but I love it..) I do not want to install Vista on it because of my warranty, and the chance of not being able to access my XP Pro. I cannot afford to loose my current configuration and do not want to have to restore the computer.
I have a couple of other desktop couputers capable of running Vista, except they do not have DVD drives. Am I forced to get a DVD drive for one of them in order to install Vista?
All my computers are networked via a linksys wireless router.
I would appreciate any help that anyone can give me.. Thanks much.

Yes, you can launch Vista setup from within an existing version of Windows from a network location if you extracted the contents of the ISO Image to a folder or use Virtual Drive software such as Daemon Tools or NERO Image drive. Make sure you created a partition to install the OS on.
http://windowsconnected.com/blogs/andre/archive/2006/06/14/3002.aspx -- -- Andre Windows Connected | http://www.windowsconnected.com Extended64 | http://www.extended64.com Blog | http://www.extended64.com/blogs/andre http://spaces.msn.com/members/adacosta
"AAHKAA" wrote in message

Is the only way to install it via a DVD attached to the computer it is being installed on? Is there any way to install it via a network?
I have a Dell Inspiron 9200 "Desktop Replacement" (wouldn't call it a laptop, too heavy for that, but I love it..) I do not want to install Vista on it because of my warranty, and the chance of not being able to access my XP Pro. I cannot afford to loose my current configuration and do not want to have to restore the computer.
I have a couple of other desktop couputers capable of running Vista, except they do not have DVD drives. Am I forced to get a DVD drive for one of them in order to install Vista?
All my computers are networked via a linksys wireless router.
I would appreciate any help that anyone can give me.. Thanks much.