Kolab: TNEF to iCal conversion

Microsoft TNEF website
Squirrelmail plugin: - TNEF Attachment Decoder
Yerase's TNEF Stream Reader
CDOLive: Property codes for MAPI
Horde Kronolith Webcalendar with Kolab support
PHP code to interpret a MAPI date, translated from ytnef.c
PHPICalendar: displays calendars from ical files
ICal writer, on sf.org

todo: hide private appointments; recurring appointments; location; subject; description;
body description rtf attachment