If the "hack" is simply to use another instance of AC then the portable version for Windows at PortableApps.com would be a perfect solution. You can "install" that as many times as you'd like to different folders. It's self-contained so it looks like a completely new instance from a programatic stand-point.
If you'd setup several instances beforehand you wouldn't even need 15 seconds, just launch a new instance and you're good to go. If that is the case then this is a serious flaw in AC, because you'd still be using the same IP address (as seen above). If this was done on purpose I can only assume it would be to allow for the possibility of a legitimate user being re-issued that same IP at some future point. It's pretty odd though and I can't imagine it's as simple as that.
If you'd setup several instances beforehand you wouldn't even need 15 seconds, just launch a new instance and you're good to go. If that is the case then this is a serious flaw in AC, because you'd still be using the same IP address (as seen above). If this was done on purpose I can only assume it would be to allow for the possibility of a legitimate user being re-issued that same IP at some future point. It's pretty odd though and I can't imagine it's as simple as that.