Hi!
I used to migrate the webMethods Integration Server from one machine to another by zip up the webMethods directory and copying it to the new server. Does that still work?
:shock:
I am afraid 
I have never tried this.
It will definitely work but in windows environment you might face some problems with registry.
This process is used to replicate the same copy among cluster servers.
In 9.6 you will get Multi IS instance feature just like how we have now for MWS