CODEWITHSUNDEEP
c++64-bitvisual-studio-express
Nathan Osman
Nathan Osman

Reputation: 73195

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

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?

Upvotes: 130

Views: 177393

Answers (8)

Hadrien Huvelle
Hadrien Huvelle

Reputation: 381

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

Upvotes: 2

perilbrain
perilbrain

Reputation: 8197

Programming in a 64-bit environment is quite different than 32-bit environment. Code generated has totally different assembly constitution in 32 & 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.

Upvotes: 3

user634180
user634180

Reputation:

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.

Upvotes: 5

Matt
Matt

Reputation: 2846

Here are step by step instructions:

  1. 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
  2. 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."
  3. 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.

Upvotes: 182

Jamie Fristrom
Jamie Fristrom

Reputation: 348

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

Upvotes: 14

Matt
Matt

Reputation: 2846

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.

Upvotes: 9

duduong
duduong

Reputation: 41

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

Upvotes: 4

YOU
YOU

Reputation: 123831

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

Upvotes: 49

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