CompatibilityHints.setHintEnabled(
CompatibilityHints.KEY_OUTLOOK_COMPATIBILITY, true);
VEvent meeting = new VEvent();
meeting.getProperties().add(new Summary(subject));
meeting.getProperties().add(new Description(content));
meeting.getProperties().add(new DtStart(new DateTime(start)));
meeting.getProperties().add(new DtEnd(new DateTime(end)));
if (location != null) {
meeting.getProperties().add(new Location(location));
}