If you want to use SoftIce on Windows NT 5 Builds or higher than 1924, you must turn off the read-only memory protection. Do you want setup to set the registry and reboot your machine with the new settings now?
I am skeptical about hitting Yes to this, though it is the only way I am going to be able to install SoftICE. Wouldn't turning read-only memory off be really dangerous? I guess I just want to reassurance on this before I install.