"Product: Spotlight on Exchange Enterprise Edition -- Error 1723. There is a problem with this Windows Installer package. A DLL required for this install to complete could not be run. Contact your support personnel or package vendor. Action SxsInstallCA, entry: CustomAction_SxsMsmInstall, library: C:\WINDOWS\Installer\MSI1ECD.tmp"
This occurs during the installation of the Database Components, but could happen during a complete install as well.
The Windows Installer is out of date, or is corrupted.
"Error 1723: There is a problem with this Windows Installer package."
Refer to Microsoft's download site to obtain Windows Installer 3.1 Redistributables (v2):
1. Install the updated version of Windows Installer download above.
2. Reboot the computer.
3. Re-start the installation of Spotlight on Exchange.