Microsoft.Crm.Config.Client.InstallPstAction failed

I often come across admins reporting a specific error when installing Outlook CRM client on some computers.

Action Microsoft.Crm.Config.Client.InstallPstAction failed.
LaunchOutlookInstallerProcess failed.

The fix based on Microsoft KB http://support.microsoft.com/kb/2496442  not always works. To resolve the issue give the user write permissions on the following file:

C:\Program Files\Common Files\System\MSMAPI\1033\mapisvc.inf

This will resolve the problem. If you deploy CRM client via GPO or other similar deployment methods, make sure you configure a script to amend permissions on this specific file otherwise you will end up getting random users reporting the problem.