This documentation is archived and is not being maintained.

Installer.Install Method

When overridden in a derived class, performs the installation.

Namespace:  System.Configuration.Install
Assembly:  System.Configuration.Install (in System.Configuration.Install.dll)

public virtual void Install(
	IDictionary stateSaver


Type: System.Collections.IDictionary

An IDictionary used to save information needed to perform a commit, rollback, or uninstall operation.


The stateSaver parameter is null.


An exception occurred in the BeforeInstall event handler of one of the installers in the collection.


An exception occurred in the AfterInstall event handler of one of the installers in the collection.

Notes to Inheritors:
  • If you override the Install method in a derived class, be sure to call the base class's Install method first in your derived method. The Install method calls the Install method of each installer contained in the Installers property of this instance. After the contained installers run, this method updates the IDictionary object (specified through the stateSaver parameter) to reflect the status of the installation. The IDictionary should be empty when passed to the Install method. If all the Install methods succeed, the Commit method is called. Otherwise, the Rollback method is called.

  • If you need to add installer instances to the Installers collection in the Install method, be sure to perform the same additions to the collection in the Uninstall method. However, you can avoid maintaining the collection in both methods if you add installer instances to the Installers collection in the class constructor for your custom installer.

The following example demonstrates the Install method of the Installer class. A class is derived from the Installer base class and the Install method is overridden.

// Override the 'Install' method of the Installer class. 
public override void Install( IDictionary mySavedState )
   base.Install( mySavedState );
   // Code maybe written for installation of an application.
   Console.WriteLine( "The Install method of 'MyInstallerSample' has been called" );

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0