> ## Appendix C
> Uninstalling and reinstalling Ensim Pro

> ## Introduction

> This appendix includes instructions about uninstalling and reinstalling Ensim Pro; however, there are some limitations to both processes that are described in the following sections.

> ## Canceling the Ensim Pro installation

> You can cancel the Ensim Pro installation any time by clicking Cancel in the Installation Progress window. Canceling the installation will start the rollback process. You can reinstall Ensim Pro after the rollback process completes successfully.

> If, for any reason, the rollback does not happen, you will need to manually uninstall the Ensim Pro components that have already been installed.

> ## Uninstalling Ensim Pro and its add-ons

> You can uninstall Ensim Pro by using the Add or Remove Programs option of Windows Server 2003.

> To uninstall Ensim Pro:

> 1. Connect to the Ensim Pro server using the console or terminal services and log on as the administrator.
> 2. Click Start > Control Panel.
> 3. Click Add or Remove Programs.
> 4. In the Add or Remove Programs window, if you have installed any add-ons for ColdFusion MX 6.1, Urchin 5, MySQL 4.0.12, IMail Server 8.13, or Ensim Ignite services, then locate them, and click Remove for each add-on.

> The uninstallation process begins and removes the add-ons.

> 5. In the Add or Remove Programs window, locate Ensim Pro Online Help, and Ensim Pro, and click Remove for both.

> The uninstallation process begins and removes Ensim Pro and the online Help.

> The uninstallation process will not remove all install-related items automatically; you must manually remove directories related to Perl, site data, and the files in the directory where Ensim Pro was installed.

> ## Reinstalling Ensim Pro

> You can reinstall Ensim Pro if the previous installation of Ensim Pro did not complete successfully; however, ensure that the earlier installation rolled back successfully (If the progress bar in the Installation Wizard window rolled back successfully without any error message, then the roll-back action was successful).

> If not, you must manually remove partially installed components of Ensim Pro. For instructions about removing Ensim Pro and its components, see Uninstalling Ensim Pro and its add-ons.

> After uninstalling Ensim Pro and its add-ons, you must restart the server before reinstalling Ensim Pro and its add-ons.

> While reinstalling Ensim Pro, you must perform the installation of Ensim Pro and its add-ons in the following sequence.

> 1. Install Ensim Pro and Ensim Pro online Help.

> For instructions about installing Ensim Pro and Ensim Pro online Help, see Chapter 2, Installing Ensim Pro.

> 2. Optional: Install the add-ons for ColdFusion MX 6.1, Urchin 5, IMail Server 8.13, MySQL 4.0.12, and Ensim Ignite services.

> For instructions about installing add-ons, see Appendix A, Installing add-ons for ColdFusion, Urchin, IMail, MySQL, and Ensim Ignite services.

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