As install mode uses IFEO, it may cause problems when a process launches an instance of itself (Chrome, for example). A solution could be to catch the process create event and attach to the child process automatically, so it won't be affected by IFEO settings.
One idea how to solve it would be to inject an "extension" dll to the child process that would hook the CreateProcess method, temporarily adding the DEBUG flag.
As install mode uses IFEO, it may cause problems when a process launches an instance of itself (Chrome, for example). A solution could be to catch the process create event and attach to the child process automatically, so it won't be affected by IFEO settings.