Briggs Softworks

Couple questions - I assume that all hands played are stored in a database somewhere, right? Where is that? And is the database format defined along with the queries you'd use to access it?

I'd be interested in writing my own hand history viewer, but not sure where to start. Does anybody have anything they'd be willing to share as a starting point (even if it's very basic)?

They are stored on the server as plain text files in your data folder inside the HandHistory subfolder. They can be fetched via the API or just opened directly. In version 7, click the Data Folder button in the PM Service Manager.