Whenever I click on an AIP file, it tries to run the Advanced Installer 3.5.1 setup program. I see in the links elsewhere that the fix is to send you all my AIP files so you can fix them and send them back.
THIS IS TOTALLY UNACCEPTABLE.
I should not be asked to send you my personal AIP files. Rather you should make a patch to fix this problem.
PLEASE RESPOND ASAP. Thank you for your anticipated cooperation.
PS. The workaround is to open the AI program first and then open my API file from the file menu, but this is very inconvenient and not standard program protocol.