Has any one used this tool before:

http://www.neuber.com/taskmanager/taskmanager.html

Is it good? How does it compare to Process Explorer?

Thanks

I used to use this a lot, it gives some really quick and easy info to give you a good idea whether a process is what you think (simple example - the process name might match a normal windows service but it has been started from some other folder than Windows). "Does what it says on the tin"

Haven't used it for a while now.

Process Explorer can do so much more, tell you exactly what is going on with every thread, looks at things like priority levels, access to registry and files, loads of good troubleshooting detail, but you need to be able to interpret this and have some idea what you are looking for.

Sometimes a simpler tool is just that - simpler. Security task manager is useful for what it does well, which is giving you very quick information and detail about processes which are running.