Troubleshooting sample building issues on X64, post 7

This series on troubleshoots buiding Windows Vista SDK samples on X64 machines.  Found a workaround to another issues? Share them here or email me.

7. Error:  Linking….\Release\Foo.obj : fatal error LNK1112: module machine type ‘x64’ conflicts with target machine type ‘X86’ 

Problem:  Not all Windows SDK samples with Visual C++ 2005 project files have configurations to build for X64. We’re working towards complete 64-bit parity for all samples and this will get better with each SDK release.  We’re making a big push in the the Windows SDK for Microsoft Windows Server code name “Longhorn” and .Net Framework 3.5.


Load the sample in Visual Studio (C++) 2005 and update the Configuration Manager under Project | Properties. Additionally, if you do not install libraries for all CPU architectures during SDK setup, some samples with Visual C++ 2005 project files may fail to build with this error for all configurations in the project file:


fatal error LNK1181: cannot open input file


For example, if a sample has an x86 configuration and x86 libraries were NOT installed (these are installed by default when installing the SDK on a X64 machine), that sample’s x86 configuration will fail to build. To workaround this issue, add the necessary components to your SDK install.  Open Control Panel, select Add/Remove Programs (Programs and Features on Vista), select the appropriate SDK and use the Change functionality to update the Microsoft Windows Software Development Kit.

Karin Meier

Windows SDK Samples Program Manager

Comments (1)

  1. Are you having problems building some of the Windows Vista SDK samples on an X64 machine? Me too. That’s

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