OEM Vista Home Premium to Ultimate?

[mahe06]

i have dell xps system, which comes with vista home premium with sp1 pre integrated wiht few other updates from dell.

is it possible to build a vista ultimate oem copy from my vista home premium dell dvd?

since most say all dvd contains all versions of vista, i did tried using vlite to build ultimate, but once i direct the vlite to vista copied folder, it always says vista home premium with sp1?

why v lite dint ask me to chose which version i want to install. ?

i tried to build coz its the latest home premium dvd wit sp1 n all the hotfix related to prior july 2008 n also few dell system updates that will be visible in vlite.

im sorry tho is it legal to build ultimate from home premium?

how can i build ultimate version from my home premium dvd?

any help would be appreciated

thx

[Kelsenellenelvian]

OK the dell CD contains ONLY home premuim so you can't do what you want..

Sorry.

[Jakebo]

Even if possible, by the license it would not be a legal copy. You can buy an OEM Ultimate, but be aware it could cause Dell to not offer support on it.