UserDefinedProperties

[AeJai]

I am adding new fields to the summary information for a file in this application I am working and I want to know if I can create a property identifier for the UserDefinedProperties? For example, already existing is // Summary Information PID_TITLE = 2; //DocumentSummaryInformation I was thinking I should add a field similar to PIDDSI_CATEGORY for UserDefined, which has a property identifier value of 0x00000002, but I do not know how?

[Roger Broomfield]

You should review this[^] MSDN article, where it states : The UserDefined property set can be used to hold any properties. Typically, it is used to store named properties created by a user.