If the packed date is included, it uses the Frye Packed date format.

The Frye Packed Date is a little endian (Intel format) DWORD 
formated with the following nibbles:

  dd:ee:yyy:m 

   "dd"=day(31-24), 
   "ee"=expire(23-16)
   "yyy" = year(bits 15-4), 
   "m"=month(3-0),

typedef DWORD tPackedCalDate; 

