I have SoftICE setup to start in manual mode. When I try to start it from the start menu I see a quick flash of a command window but SoftICE never starts. Then I opened a command window and typed "net start ntice". It reports that the service could not be started.
One of the things that could be wrong is that there is another kernel debugger running.
If you have the \boot directive in you boot.ini file it will need to be removed.