The CostInitialize action initiates the installation costing process.
Any standard or custom actions that affect costing should be sequenced before the CostInitialize action. Call the FileCost action immediately following the CostInitialize action. Then call the CostFinalize action following the CostInitialize action action to make all final cost calculations available to the installer through the Component table.
There are no ActionData messages.
The CostInitialize action loads the Component table and Feature table into memory.