You can set up a scheduled task or install Tomcat as a service. I'm
pretty sure the Tomcat 3.3 binary on Windows is a service wrapper, so
you can invoke Tomcat.exe and supply the parameters to create a service.
You may need to edit the registry manually to set up classpaths and
other variables
You can get jk_nt_service.exe from
http://www.apache.org/dist/jakarta/tomcat-3/bin/win32/i386/ (or substitute
your favorite mirror for www.apache.org). This is the Windows Service
wrapper that ships with Tomcat 3 (and is the one that is documented in the
Tomcat 3 docs).
You could also use