KMail composer, Attachment -> View with OpenOffice.org...

Greetings. SUSE Linux 10.0/Kmail 1.8.2/KDE 3.4.2 b (all shipped versions/no changes from my side). When attaching an odt document (OpenOffice.org text) in KMail's composer, and then right cklicking the attachment and choosing View, I would like OpenOffice.org to start and show the document. How can I tell KMail to do this? The correct mime type is automatically set by KMail in the attachment properties. In general, how do I tell KMail what programs should be used to show different document/data format attachements in the above situation? Best regards :o) Johnny :o)