64bit vs 32bit

i will be installing the 64bit version on my 64bit machine however will my 32bit application work (in theory i understand its a beta)
thanks!

32bit apps will run insiade of a 64bit enviroment, however 64bit apps will not in a 32bit enviroment!
"Sean" wrote:

i will be installing the 64bit version on my 64bit machine however will my 32bit application work (in theory i understand its a beta)
thanks!

There are a lot of changes in Vista, both x86 and x64. Therefore there are many things that can affect whether a 32-bit program will run on x64 or even x86.
In Vista x64 the WOW64 is the compatibility layer for this, the same as Win x64, but 16-bit installers will prevent any program from being installed because there is no 16-bit support in x64.
Sean wrote:

i will be installing the 64bit version on my 64bit machine however will my 32bit application work (in theory i understand its a beta)
thanks!

I will be installing 64bit Vista on my 64bit machine however will my 32bit apps work in principle (I understand its a beta and not all 32bit applications will be suported just asking in general terms)
thanks!

Yes they should, 32 bit apps ran for me in XP64.
"Sean" wrote:

I will be installing 64bit Vista on my 64bit machine however will my 32bit apps work in principle (I understand its a beta and not all 32bit applications will be suported just asking in general terms)
thanks!

I have 32 bit games such as Battlefield 2 on 64 os. works great.
"Sean" wrote:

I will be installing 64bit Vista on my 64bit machine however will my 32bit apps work in principle (I understand its a beta and not all 32bit applications will be suported just asking in general terms)
thanks!