Debugging on a 64-Bit Platform
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You can run Visual Studio 2010 on a 64-bit x64 platform under WOW64, which allows 32-bit Windows applications to run on 64-bit Windows operating systems. However, Visual Studio 2010 does not support IA-64 WOW. To debug IA-64 applications, you must debug remotely. For more information, see How to: Debug 64-Bit Applications.
When you debug a 64-bit application under WOW64, Visual Studio seems to perform normal local debugging. However, Visual Studio uses the remote debugging mechanism to connect to the 64-bit application, even on the same computer. Therefore, all considerations that apply to remote debugging apply to local debugging on a 64-bit operating system. For example, the external console window does not work on a 64-bit operating system.
For more information about how to debug a 64-bit application, see How to: Generate Dump Files for 64-bit Applications.
See Also
Tasks
How to: Debug 64-Bit Applications
How to: Generate Dump Files for 64-bit Applications
Concepts
Visual Studio Development Environment 64-Bit Support
Other Resources
64-Bit Programming with Visual C++