I know I can create the x64 platform manually after the project has been create with Win32 platform(as below), but I don't want to do it every time.
Is there any config file I can change in the Visual Studio?
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1. Build/Configuration Manager
2. Active Solution Platform
3.
4. x64
Best Answer
When you create a project - you simply invoke a wizard. So you can do one of the following - either tweak the settings of the wizard you currently use - or create new one. More on the subject: http://msdn.microsoft.com/en-us/library/5abkeks7(v=vs.71).aspx
Note that any changes you make are local and should be manually brought to other developers' machines.
Update: If you are Ok with some kind of quick hack - try experimenting with
<Microsoft Visual Studio 10.0 Install Path>\VC\VCWizards\default.vcxproj