About installing kernel-ex:
It's a little setup program, that asks for a few options while installing. Those options cannot be changed later, only if first uninstalling and then reinstalling again. Uninstalling works perfectly from the usual add/remove-programs list.
Install and uninstall require each a system restart, if you want to switch options later, do NOT think you'll just do the two back-forth-installs in a row without restart in between, or you're in BIG trouble
Fortunately my trouble was cured again after two restarts in a row, uff
And all was always fine when following the order to restart after installation.
In general I've made best experiences with using the option to apply KEx NOT automatically, only manually if a new program doesn't run without it. Then you can right click the exe of that program, click properties and set the special "compatibility" to XP or Win2000 or whatever.
When I installed with the "automatic" setting once, it gave me occasionally errors with old genuine w98 programs, which never happened with manual settings.
Guenter says he made horrible experiences once with KEx on his ME, but me never