I'm not sure if ForceBindIP would work because you need to use it to run the actual application and the problem with Iris is that you cannot directly run the client, it needs to be opened by the launcher. If you attempt to run the irisclient.exe directly, it will instead open the launcher which will in turn open the irisclient.exe.

I guess just give it a try, use it to open irisclient.exe and let it do it's thing opening launcher and then client again, maybe it will still use the adaptor you set with ForceBindIP, I don't know tbh.

The other option I guess is to temporarily disable your cable connected network adaptor, run Iris and then turn it back on after Iris is open.

You could also do it with a Firewall I guess - setup outbound rules for Iris forcing it to use the particular network card that has the wifi internet connection.

Ow? that process sounds more interesting haha, Ill googles that then. Currently I switch net everytime i go on iris XD