Error Message: “The windows installer service could not be accessed” when installing the program

Error Message: “The windows installer service could not be accessed” when installing the program

SYMPTOMS

When installing or uninstalling the program, the following error occurs:
The Windows Installer Service could not be accessed.
This can occur if you are running Windows in safe
mode, or if the Windows Installer is not correctly
installed. Contact your support personnel for assistance.

CAUSE

The Windows Installer Service that is included with Windows XP is unregistered or damaged.

RESOLUTION

To resolve this issue, follow the steps in the following Microsoft Knowledge Base article: