How to compile a 64-bit application using Visual C 2010 Express

Question

Is there a simple way to compile a 64 bit app with the 32-bit edition of Visual C   2010 Express  What configurations  if any  are necessary

User · Answer

64-bit tools are not available on Visual C++ Express by default. To enable 64-bit tools on Visual C++ Express, install the Windows Software Development Kit (SDK) in addition to Visual C++ Express. Otherwise, an error occurs when you attempt to configure a project to target a 64-bit platform using Visual C++ Express.

How to: Configure Visual C++ Projects to Target 64-Bit Platforms

Ref: http://msdn.microsoft.com/en-us/library/9yb4317s.aspx

User · Answer

I found an important step to add to this - after you ve installed the SDK  go to your project properties and change Configuration Properties- General- Platform Toolset from v100 or whatever it is to Windows7 1SDK  This changes   WindowsSdkDir  to the proper place and seemed to solve some other difficulties I was encountering as well

User · Answer

As what Jakob said  windows sdk 7 1 cannot be installed if MS VC   x64 and x86 runtimes and redisrtibutables of version 10 0 40219 are present  after removing them win sdk install is okay  VS C   SP1 can be installed fine again    Kind regards

User · Answer

Here are step by step instructions    Download and install the Windows Software Development Kit version 7 1  Visual C   2010 Express does not include a 64 bit compiler  but the SDK does  A link to the SDK  http   msdn microsoft com en-us windowsserver bb980924 aspx Change your project configuration  Go to Properties of your project  On the top of the dialog box there will be a  Configuration  drop-down menu  Make sure that selects  All Configurations   There will also be a  Platform  drop-down that will read  Win32   Finally on the right there is a  Configuration Manager  button - press it  In the dialog that comes up  find your project  hit the Platform drop-down  select New  then select x64  Now change the  Active solution platform  drop-down menu to  x64    When you return to the Properties dialog box  the  Platform  drop-down should now read  x64   Finally  change your toolset  In the Properties menu of your project  under Configuration Properties   General  change Platform Toolset from  v100  to  Windows7 1SDK     These steps have worked for me  anyway  Some more details on step 2 can be found in a reference from Microsoft that a previous poster mentioned  http   msdn microsoft com en-us library 9yb4317s aspx

User · Answer

Download the Windows SDK and then go to View- Properties- Configuration Manager- Active Solution Platform- New- x64

User · Answer

Programming in a 64-bit environment is quite different than 32-bit environment  Code generated has totally different assembly constitution in 32  amp  64-bit code  even the protocols of communicating with functions change  So you can t generate 64-bit code using 32-bit compiler   You might want to see an article on Microsoft s web site about targeting a 64-bit target but using a 32-bit development machine

User · Answer

Note that Visual C   compilers are removed when you upgrade Visual Studio 2010 Professional or Visual Studio 2010 Express to Visual Studio 2010 SP1 if Windows SDK v7 1 is installed   For instructions on resolving this  see KB2519277 on the Microsoft Support site

User · Answer

And make sure you download the Windows7 1 SDK  not just the Windows 7 one  That caused me a lot of head pounding

[c++] How to compile a 64-bit application using Visual C++ 2010 Express?

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