You mark a class derived from System.Configuration.Install.Installer with this attribute to indicate that it should be invoked as a custom action when the assembly is installed. See the documentation for that namespace, and see InstallUtil.exe for more information on installers and custom actions.

You can retrieve the state of the attribute with the RunInstaller property, but note that you must compare the object against the static Yes and No values for equality.

public class RunInstallerAttribute : Attribute {
// Public Constructors
   public RunInstallerAttribute(bool runInstaller);
// Public Static Fields
   public static readonly RunInstallerAttribute Default;  // =System.ComponentModel.RunInstallerAttribute
   public static readonly RunInstallerAttribute No;  // =System.ComponentModel.RunInstallerAttribute
   public static readonly RunInstallerAttribute Yes;  // =System.ComponentModel.RunInstallerAttribute
// Public Instance Properties
   public bool RunInstaller{get; }
// Public Instance Methods
   public override bool Equals(object obj);  // overrides Attribute
   public override int GetHashCode();  // overrides Attribute
   public override bool IsDefaultAttribute();  // overrides Attribute
}

Hierarchy

System.Object System.Attribute RunInstallerAttribute

Valid On

Class