Specify BAFunctions At Compile Time
User stories
- As a WiX User I can specify which DLL is the BAFunctions at compile time such that this feature is discoverable, the DLL can have a configurable name, and WixStdBA can know when the DLL is supposed to be there.
Proposal
Add a new bal:IsBAFunctions attribute for the Payload element.
This should only be specified when the Payload element is inside a BootstrapperApplicationRef element.
This attribute puts the necessary information into BootstrapperApplicationData.xml for WixStdBA to stop blindly trying to load BAFunctions.dll.
If loading the BAFunctions fails, WixStdBA will treat it as a fatal error and immediately exit.
Considerations
This was a "magical" feature, so it will be hard for existing users to know about this change.