Microsoft .net Framework 4 Multi Targeting Pack

It installs the necessary reference assemblies required to compile code against the .NET Framework 4.0 libraries.

If the Visual Studio Installer does not offer the specific pack you need, you can download it directly: microsoft .net framework 4 multi targeting pack

Under "Target framework", you should now see available in the dropdown menu. Best Practices for Multi-Targeting It installs the necessary reference assemblies required to

You can use the latest C# language features and Visual Studio optimizations while deploying code that runs seamlessly on machines with only .NET 4.0 installed. 📌 Always check your csproj file

📌 Always check your csproj file. Ensure the is set to v4.0 to trigger the multi-targeting logic correctly. If you're stuck on a specific error, let me know: Which Visual Studio version are you using? Are you getting a specific error code ? Is this for a web app or a desktop (WPF/WinForms) app ?

多目标包还常常与 .NET Framework 的**Profile（配置文件）**相关联。比如说，除了完整的框架包，微软还提供过“.NET Framework 4 Client Profile”，这是一种精简版本，适用于桌面客户端应用。多目标包允许开发者在开发时直接针对这种精简的子集进行开发，从而确保应用不会依赖完整框架中仅在服务器端才有的臃肿组件。

: Download NDP451-KB2861696-x86-x64-DevPack.exe (approximately 198.6 MB). This pack installs both the runtime and the multi-targeting components.