Some manufacturers will supply the media for a shipping cost. Others not.
However, if you have a 32 bit OEM license and can find a 64 bit OEM media
disk, even a generic one, the license should still work. An OEM license
won't work with retail media, though, it has to be OEM media.

--
Best of Luck,

Rick Rogers, aka "Nutcase" - Microsoft MVP
http://mvp.support.microsoft.com/
Windows help - www.rickrogers.org
My thoughts http://rick-mvp.blogspot.com

"Mike Bernstein" <mkmike@community.nospam> wrote in message
news:OULvVzvbIHA.5712@TK2MSFTNGP04.phx.gbl...
> Unless it is OEM, i.e. supplied with a new PC. OEM versions are either 32
> bit or 64 bit. You would have to by a new copy of Vista 64 bit to replace
> an OEM 32 bit version.
>
> Mike Bernstein
>
> "Rick Rogers" <rick@mvps.org> wrote in message
> news:OhfYBuvbIHA.4172@TK2MSFTNGP02.phx.gbl...
>> Correct. A Vista license allows for installing either the 32 or 64 bit
>> version of the puchased product.
>>
>> --
>> Best of Luck,
>>
>> Rick Rogers, aka "Nutcase" - Microsoft MVP
>> http://mvp.support.microsoft.com/
>> Windows help - www.rickrogers.org
>> My thoughts http://rick-mvp.blogspot.com
>>
>> "dimaj" <dimaj@discussions.microsoft.com> wrote in message
>> news:E1961524-E558-450F-9507-39398A3D98F1@microsoft.com...
>>> Hello,
>>>
>>> So just to clarify...
>>> There will be no additional license fees for upgrading Windows Vista
>>> Home
>>> Premium 32 bit to 64 bit, right?
>>>
>>> Thanks in advance.
>>>
>>> dimaj
>>>
>>> "Robert Firth" wrote:
>>>
>>>> Yes, you will be able to reinstall with 64 bit. Just remember that you
>>>> can'
>>>> upgrade, it must be a clean install.
>>>>
>>>> --
>>>> /* * * * * * * * * * * * * * * * * *
>>>> * Robert Firth *
>>>> * Windows Vista x86 RTM *
>>>> * http://www.WinVistaInfo.org *
>>>> * * * * * * * * * * * * * * * * * */
>>>>
>>>> "Mike" <Mike@discussions.microsoft.com> wrote in message
>>>> news:934622C0-9444-4137-B0E3-9DBE7DDC3684@microsoft.com...
>>>> >I currently have Windows Vista Home Premium 32-bit installed on my
>>>> >computer.
>>>> > However, I have a 64-bit processor and was thinking that it might
>>>> > behoove
>>>> > me
>>>> > to make the switch to 64-bit for the increased performance. However,
>>>> > since
>>>> > I
>>>> > have already activated my Product Key, will I be able to uninstall my
>>>> > current
>>>> > Vista installation to install the 64-bit?
>>>>
>>
>