Re: could not find or load main class org.netress.process.NetRexxC
This is not a tools.jar missing case, this is NetRexxF.jar (or NetRexxC.jar, but use F if you want to use the ecj compiler) not being on the CLASSPATH. I see it on your screen but that is probably not the correct location. You can try to move the NetRexxF.jar location to earlier on the CLASSPATH to avoid interference by other file locations not found. For a small smoke test, leave out the others until you see NetRexx working.