Category: Windows Installer; Deployment 

You receive an error message when you try to install a program that uses the Windows Installer in Windows XP

SYMPTOMS
When you try to install a program that uses the Windows Installer in Microsoft Windows XP, the program does not install, and you may receive an error message that is similar to one of the following error messages:

• The Windows Installer service could not be accessed. Contact your support personnel to verify that the Windows Installer service is properly registered.
• The Windows Installer service failed to start. Contact your support personnel.
• Internal Error

CAUSE
This issue may occur when the Windows Installer files are missing or damaged.

RESOLUTION
To resolve this issue, use one or more of the following methods in the order that they are listed.

Method 1: Reregister the Windows Installer
Method 2: Remove the Windows Installer files
Method 3: Restart Windows XP in Safe Mode

How to resolute? Visit the detailed article at Microsoft Support.

Source: Microsoft Support