Vista - wpf on a 64 bit machine?

I am talking with a company who wants to port their code, currently vb6 gui
and C++ dlls, to a 64 bit platform.
They have done testing with some tool that indicated they could achieve a
20% increase in performance of their graphics intensive app.
Since they are starting the port in the next month, does it make sense to
stay in .NET 2.0? Even without much experience yet with WPF or .NET3.0, I am
inclined to suggest to do this on Vista 64 bit.
Can I just install Visual Studio (orcas) on the 64 bit machine and develop
as if it were for the most part 32 bit?
I know there will be some managed/unmanaged code interop issues but I will
hopefully be able to deal with those as I move into the process of
communication between the C++ code and the vb.net or c# based presentation
layer.
I am even wondering if it makes sense to have a WCF layer between the GUI
and the C++ dll's.
I am writing this question within the Vista Beta2 runtime environment right
now. I just got the sound driver installed yesterday. Office 2007and Visual
Studio components set up, so I am ready for a new adventure.
Thank you,
Greg

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Charlie Russel

"hazz" <greghazzard@comcast.net> wrote in message
news:4CC9B98A-5977-46AF-BBFB-6EC9AADE1302@microsoft.com...
>I am talking with a company who wants to port their code, currently vb6 gui
>and C++ dlls, to a 64 bit platform.
> They have done testing with some tool that indicated they could achieve a
> 20% increase in performance of their graphics intensive app.
> Since they are starting the port in the next month, does it make sense to
> stay in .NET 2.0? Even without much experience yet with WPF or .NET3.0, I
> am inclined to suggest to do this on Vista 64 bit.
> Can I just install Visual Studio (orcas) on the 64 bit machine and develop
> as if it were for the most part 32 bit?
> I know there will be some managed/unmanaged code interop issues but I will
> hopefully be able to deal with those as I move into the process of
> communication between the C++ code and the vb.net or c# based presentation
> layer.
> I am even wondering if it makes sense to have a WCF layer between the GUI
> and the C++ dll's.
> I am writing this question within the Vista Beta2 runtime environment
> right now. I just got the sound driver installed yesterday. Office 2007and
> Visual Studio components set up, so I am ready for a new adventure.
> Thank you,
> Greg