I am using NNM 7.51 on Windows 2003. I am not familiar with Tomcat before. Now I would like to upgrade Tomcat that running by OV from embaded version 4.0.4 to newer version, I have Tomcat 5.0.28 binary files to replace current version. But I don't know how to upgrade it on Windows platform. Anyone please advise me. Thank you very much.