This subtle distinction is crucial: the reference assembly tells the compiler methods and classes are available, but not how they work. By keeping reference assemblies separate, development tools can target framework versions that may not even be installed on the current machine.
Build servers without Visual Studio installed might lack the necessary reference assemblies. A common symptom is the compiler failing to find standard assemblies like mscorlib.dll . microsoft .net framework 4 multi targeting pack
A Multi-Targeting Pack (or targeting pack) is a set of binaries and metadata. It tells Visual Studio and MSBuild which assemblies and APIs are available in a specific version of the .NET Framework. This subtle distinction is crucial: the reference assembly
However, Microsoft eventually identified a security vulnerability specifically within the (specifically the reference assemblies). As a result, Microsoft removed the standalone download for the original .NET 4 Multi-Targeting Pack from their servers and replaced it with the .NET Framework 4.5 Multi-Targeting Pack . A common symptom is the compiler failing to
When installed, the pack adds the following to your development environment: