When overridden in a derived class, restores the pre-installation state of the computer.
Namespace: System.Configuration.Install Assembly: System.Configuration.Install (in system.configuration.install.dll)
An exception occurred during the Rollback phase of the installation. This exception is ignored and the rollback continues. However, the computer might not be fully reverted to its initial state after the rollback completes.
Notes to Inheritors
When you override the Rollback method in a derived class, be sure to call the base class's Rollback method first in your derived method. A rollback operation restores the computer to the state it was in before the installations occurred. The Rollback method is called if the Install method of this instance of Installer, or any installer in the installer collection, fail to run correctly. Any exceptions generated by calling the Rollback methods of the installers in the installer collection are ignored and the rollback of the other installers continues.
// Override 'Rollback' method of Installer class.
public void Rollback(IDictionary mySavedState)
Console.WriteLine("The Rollback method of 'MyInstallerSample'"
+ " has been called");