Today, I learned a new trick, how to install
Win Vista on a machine with just 256MB of RAM!
Booting directly to DVD will just give you an error.
Install Windows 2000 or Windows XP first,
WinXP SP2 is recommended.
Then run
D:\SETUP.EXE /nosyscheck
*Change the drive letter to match your DVD drive
Well of course there are other ways to install.
Like the winsetup.dll patch
PS.
I found this trick while googling. ^^
I loooove google!
Warning
Running Vista below req. specification is not recommended.
Additional Info.