http://support.microsoft.com/kb/328213/en-usSYMPTOMSWhen you add or remove a program by using Add/Remove Programs in Control Panel, the following event may appear in the system log:
Event Type: Error
Event Source: Service Control Manager
Event ID: 7023
Description: The Application Management Service terminated with the following error: The specified module could not be found.
CAUSEThe Application Management service is not supported in Microsoft Windows XP Home Edition, and the Appmgmt.dll file is not included with Windows XP Home Edition.
However, the registry setting that disables this service is not configured correctly in Windows XP Home Edition. Therefore, the Add Program routine tries to find the Appmgmt.dll file. When the Add Program routine cannot find the Appmgmt.dll file, the entry appears in the system log.