.Framework 4.5 dll's
Microsoft.Activities.Build.Debugger
Microsoft.Activities.Build.Debugger
Microsoft.Activities.Build.Validation
?
Microsoft.Build.BuildEngine - The Microsoft.Build.BuildEngine namespace represents the MSBuild engine.
Microsoft.Build.Construction - Contains types that the MSBuild object model uses to construct project roots with unevaluated values. Each project root corresponds to a project or targets file.
Microsoft.Build.Conversion - Contains types that Visual Studio uses to convert project files from an older version of Visual Studio.
Microsoft.Build.Debugging - Contains type for managing the debugger.
Microsoft.Build.Evaluation - Contains types that the MSBuild object model uses to evaluate projects. Each project is associated with one or more project roots.
Microsoft.Build.Exceptions - Contains exception types that may be thrown during the build process.
Microsoft.Build.Execution - Contains types that the MSBuild object model uses to build projects.
Microsoft.Build.Framework - Contains the types that define how tasks and loggers interact with the MSBuild engine. For information, see MSBuild.
Microsoft.Build.Framework.XamlTypes - Classes used to represent XAML types parsed from files, rules, and other sources.
Microsoft.Build.Logging - Contains types used for logging the progress of a build.
Microsoft.Build.Tasks - The Microsoft.Build.Tasks namespace contains the implementation of all tasks shipping with MSBuild.
Microsoft.Build.Tasks.Deployment.Bootstrapper - The Microsoft.Build.Tasks.Deployment.Bootstrapper namespace contains classes used internally by MSBuild.
Microsoft.Build.Tasks.Deployment.ManifestUtilities - The Microsoft.Build.Tasks.Deployment.ManifestUtilities namespace contains classes that MSBuild uses.
The Microsoft Build Engine is a platform for building applications. This engine, which is also known as MSBuild, provides an XML schema for a project file that controls how the build platform processes and builds software. MSBuild does not depend on Visual Studio.Visual Studio uses MSBuild to load and build managed projects.