PathToExtendedFieldType fieldPath = new
PathToExtendedFieldType();
fieldPath.DistinguishedPropertySetId =
DistinguishedPropertySetType.PublicStrings;
fieldPath.DistinguishedPropertySetIdSpecified = true;
fieldPath.PropertyName = "MyField";
fieldPath.PropertyType = MapiPropertyTypeType.String;
It doesn't return a value regardless if the property is null, true or
false.