I have a custom action using the predefined "Launch file or URL" action that launches a URL. I want to execute it when the user finishes cancel. I've inserted it in the Published Events tab of the appropriate control. When I run my setup and launch the action, I get the following error (excerpt from log file):
DEBUG: Error 2762: Unable to schedule operation. The action must be scheduled between InstallInitialize and InstallFinalize.
I understand that 2762 is an error in executing a deferred CA at the wrong time. I should not be getting this since the Launch file or URL CA is an immediate action.