Tag Archives: Windows Server 2008 x64

MS Dynamics CRM 4.0 Client Configuration Wizard fails with “Outlook is not set as the default mail client” on Windows Server 2008 x64

Whilst trying to install the MS CRM 4.0 client on my laptop today I received the following error:

Microsoft Outlook is not set as the default mail client. Please set Microsoft Outlook as the default mail client from Control Panel\Internet Options\Programs, and then re-run the check.”

Luckily this was fairly easy to diagnose with the help of the excellent Process Monitor utility. All I had to do was setup a filter to only capture events for the “Microsoft.Crm.Client.Config.exe” process by going to Filter->Filter and selecting Process Name is Microsoft.Crm.Client.exe as an inclusion filter. Then using the toolbar deselect the file events and run through the wizard again until I got an output like this:

Here we can see that the registry key [HKLM]\SOFTWARE\Wow6432Node\Clients\Mail\(Default) key is being interrogated, a quick look at this in Registry Editor shows that the default is “Windows Mail” for some reason as shown below:

All we need to do is change this value from “Windows Mail” to “Microsoft Outlook”:

Then the wizard will run through fine!

Summary

I am unsure if this is a Windows Server 2008 issue or a general x64 issue, however to resolve it change
[HKLM]\SOFTWARE\Wow6432Node\Clients\Mail\(Default)
from “Windows Mail” to “Microsoft Outlook”

I am unsure if the Wow6432 key is unique to my machine / configuration.

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