http://calendarserver/verifytodos_by_ids.wcap ?id=bo35r2pr3e5po35r &calid=jdoe &uid=3bde188f0000472d0000000b00000399 &rid=20021029T200200Z &fmt-out=text/xml
<?xml version="1.0" encoding="UTF-8"?\> <iCalendar\> <iCal version="6.0" prodid="-//SunONE/Calendar Hosting Server//EN"\> <TODO\> <UID\>3bde188f0000472d0000000b00000399</UID\> <RECURID\>20021029T200200Z</RECURID\> </TODO\> </iCal\> </iCalendar\>