2010 X64 — Visual Studio

Here are the specific x64 features available in VS2010:

On X64, misaligned data doesn't crash (like it might on ARM), but it kills performance. Use __declspec(align(16)) for critical structures. The VS2010 heap allocator returns 16-byte aligned memory for X64 by default, unlike 32-bit. Visual Studio 2010 X64

Users have reported that building complex 64-bit libraries, like Qt 4.8.0, may require a specific to generate valid 64-bit code. Ensure you have Visual Studio 2010 Service Pack 1 installed to resolve known stability and compiler bugs. Runtime Requirements Here are the specific x64 features available in