ACTION               VALUE X
ATTACH               FMTTYPE ENCODING VALUE X
ATTENDEE             CN CUTYPE DELEGATED-FROM DELEGATED-TO DIR LANGUAGE MEMBER PARTSTAT ROLE RSVP SENT-BY X
CALSCALE             X
CATEGORIES           LANGUAGE X
CLASS                X
COMMENT              ALTREP LANGUAGE X
COMPLETED            X
CONTACT              ALTREP LANGUAGE X
CREATED              X
DESCRIPTION          ALTREP LANGUAGE X
DTEND                VALUE TZID X
DTSTAMP              X
DTSTART              VALUE TZID X
DUE                  VALUE TZID X
DURATION             X
EXDATE               VALUE TZID X
EXRULE               X
FREEBUSY             FBTYPE X
GEO                  X
LAST-MODIFIED        X
LOCATION             ALTREP LANGUAGE X
METHOD               X
ORGANIZER            CN DIR LANGUAGE SENT-BY X
PERCENT-COMPLETE     X
PRIORITY             X
PRODID               X
RDATE                VALUE TZID X
RECURRENCE-ID        VALUE RANGE TZID X
RELATED-TO           RELTYPE X
REPEAT               X
REQUEST-STATUS       LANGUAGE X
RESOURCES            ALTREP LANGUAGE X
RRULE                X
SEQUENCE             X
STATUS               X
SUMMARY              ALTREP LANGUAGE X
TRANSP               X
TRIGGER              VALUE RELATED X
TZID                 X
TZNAME               LANGUAGE X
TZOFFSETFROM         X
TZOFFSETTO           X
TZURL                X
UID                  X
URL                  X
VERSION              X
XPROP                LANGUAGE X
X-LIC-ERROR	     XLICEERRORTYPE X
SCOPE                X
MAXRESULTS           X
MAXRESULTSSIZE       X
QUERY                X
QUERYNAME            X
TARGET               X