Re: WinXPx64 question

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

From: Bruno Jouhier [MVP] (bjouhier_at_club-internet.fr)
Date: 03/19/05


Date: Sat, 19 Mar 2005 10:45:35 +0100


"Timothy V" <tripix@msn.com> a écrit dans le message de news:
uKL372ALFHA.1156@TK2MSFTNGP09.phx.gbl...
> Hi,
> I have a question regarding the .NET Framework 2.0 and x64. I realise
> these are still in beta, but I hope someone can help me.
>
> If i had dotnet2.0x64 installed on winxpx64. Does an application compiled
> on a winxpx86 (using dotnet2.0x86) require the x86 or x64 edition of
> dotnet2.0?
>
> I'll try to rephrase that a little better just in case you didn't get it.
> Does a 32bit .net application require the 32bit .net framework edition, or
> can it use the 64bit .net framework edition?

VS 2005 has a new setting that lets you specify whether your assembly will
target x86, x64 or both cpus. The default mode is to target both cpus. With
this setting, the same assembly can run either on x86 or x64, and the JIT
takes care of the differences.

Marking the assembly as x86 or x64 is useful if your assembly relies on
unmanaged DLLs that don't exist in both flavors.

Bruno.

>
> Thanks guys,
>
> Tim.
>



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