Exchange Property pages...
I was in need of a piece of information about how to set the mAPIID value of an attribute and Jim McBee's Mostly Exchange Web Log jumped off the search engines and into my heart... http://mostlyexchange.blogspot.com/2005/03/adding-attributes-to-exchange-details.html For anyone who needs to know I've also found that &H8000 is the beginning of the acceptable range for custom mAPIID's.