>From http://www.eventid.net/display.asp?eventid=11708&eventno=1686&source=MsiInstaller&phase=1
"Improper permissions to component Services (Windows XP). Go to start
run and type in "dcomcnfg" expand Component Services > Computer and go
to properties on "My Computer" and modify permissions on "default COM
Security" as needed."
I have added my current account (BackupOperator) to both sections and
installer worked. I hope it helps!
Greetings!
--
Michał Maluga
Business IT Solutions
michal.maluga@bits.pl