How Can I Effectively Use Async-Await in My .NET 4 Application?

Optimizing Async-Await in .NET 4 Applications

Developing a .NET 4 application leveraging async-await requires careful consideration of compiler and runtime choices. The right combination ensures optimal performance and stability.

Compiler Choices:

• VS2010 with AsyncCTP: While possible, this older combination may present code generation challenges.
• VS2012 (Preview or Release): A significant improvement over AsyncCTP, offering a more robust code generator.
• Mono 2.12: Supports async-await, but may not integrate as seamlessly with Visual Studio.

Runtime Environments:

Windows XP Compatibility:

• Microsoft Async Targeting Pack: (Microsoft.Bcl.Async via NuGet) provides a reliable runtime solution compatible with .NET 4 and Windows XP.

Cross-Platform Compatibility:

• Third-Party Runtimes: Mono (and similar alternatives) offer runtime support for non-Windows operating systems.

Deployment Strategies:

• Bundled DLLs: Simplify deployment by including the necessary runtime DLLs directly with your application, eliminating the need for a separate installer.

Recommended Approach:

For optimal results on Windows XP and enhanced code generation, use Visual Studio 2012 with C# 5 and the Microsoft Async Targeting Pack. For cross-platform applications, consider a third-party runtime like Mono. Finally, bundling DLLs streamlines the distribution process.

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