Clean up if two copies.
Download wrapper.jar and redownload wrapper.conf if wrapper.jar is not already in wrapper.conf.
Put wrapper.jar in the correct place, wrapper\
Separate wrapper.conf for Windows installs (wrapper.conf.windows). Do not use wrapper.conf (unix/mac version), and do not use wrapper.conf.no-service (we haven't kept this up to date for some time).
Include wrapper.jar
Put wrapper.jar on the classpath