I have Adobe AIR application which I want to publish with Captive Runtime. I need to have it on OS X and Windows. I know that there are certificates for Adobe AIR, but if I'm creating MSI installer for Windows and DMG for OS X, do I need to sign those installers (purchase certificate for both Windows and OS X), or sign only AIR application (purchase single AIR certificate).
Additionally, do I need to enrol in Mac Developer Program to have it avoid any restrictions on installing on Mac?
