Hello
MapiDistributionListSaveOptions.Version only applies when MapiDistributionListSaveOptions.SaveFormat is ContactSaveFormat.VCard ?
Does it have any effect when used for ContactSaveFormat Msg or WebDav ?
Thanks 
Hello,
The Version property only applies when save format is set to ContactSaveFormat.VCard.
When saving in Msg or WebDav, the Version property has no effect.
These formats do not utilize vCard specification, so setting Version property will not alter the saved output.