Unable to install SQL Server 2008 RC0 Books Online
In continuation with the BOL update topic on SQL2008-RC0_BOL post here I have had troubles in installing the RC0 Books Online on to my laptop.
As per the error below I thought it may be problem with the Windows Installer service on my laptop (Vista Ultimate) and tried to install afresh on a central monitoring server (Windows 2003 server) & local machine (Windows XP), still no luck to install the documentation.
On my laptop I have Windows Installer service 3.1 and that is not sufficient to carry out this BOL installation, so searched Microsoft KBA to see if there is any latest version is available. Bingo, here it is Windows Installer 4.5 is available and you need to download and apply on to the machine where you want to upgrade the SQL Server 2008 RC0 Books ONline documentation.
Hope this helps.