We have a Windows XP SP3 (German) with OpenOffice 3.3.0 installed and use Zarafa as Groupware. We modified the registry in order to set Zarafa WebAccess (Browser -> website) as the default mail client. Furthermore the internet settings of Windows contain "Zarafa WebAccess" as default mail client.
In most cases, this works perfectly. When clicking on mail links in the browser or an OpenOffice document, Zarafa WebAccess pops up and provides the mask for sending out a new mail via the browser. So far, so good.
Now there are some special cases. For example, OpenOffice provides an additional menu entry: File -> send -> Document as e-mail
When selecting this menu entry, OpenOffice throws me an error: "OpenOffice.org was not able to find a working mail configuration." (Translated from German to English.)
Browsing the OpenOffice bug tracker and forums I found out, that since OpenOffice 2.2 for Windows, you are no longer able to select a default mail client in the OpenOffice settings. Instead OpenOffice uses the system defaults.
We do have the same problem with some other applications, such as the Adobe Acrobat Reader. One idea was that the previously deinstalled mail client Thunderbird still hangs around in the registry and therefore still is called by third party applications. As it turned out, the programm "Thunderbird" was not found in the registry, which means that third party applications shouldn't be aware of the old mail client which is no longer installed.
Do you have any idea what goes wrong here? Any help is highly appreciated.