I'm trying to use Jakarta NT Service to launch Tomcat at system startup. I've written a servlet that runs under JDK 1.3.1 that will run fine if Tomcat is launched from a command prompt using the startup.bat batch file with the -security option: startup -security The servlet reads a configuration file from the directory in which it resides, does socket I/O with another machine on the network, and also communicates via RMI with a third computer. The servlet throws security exceptions if Tomcat is launched without the -security option. My challenge is to alter the wrapper.properties file to cause the -security option to be invoked when Tomcat is launched as an NT service. I've tried modifying the wrapper.properties file as follows, but no luck: wrapper.security=-Djava.security.manager -Djava.security.policy=$(wraper.tomcat_home)\conf\tomcat.policy and then wrapper.cmd_line=$(wrapper.javabin) $(wrapper.security) -classpath ... My guess is I'm making a syntax error in setting up the command line. Or, stepping back a bit further, why is the servlet throwing security exceptions without the -security option (maybe because of the JKD1.3.1 security manager and file/socket I/O)? My guess is that this is a fairly straight forward thing to try to do, but the docs in the jakarta-tomcat download don't seem to address it. Thanks in advance for any help, Scot -- Scot Marburger Information Systems & Services 8945-1 Sandia National Laboratories/California Email:[EMAIL PROTECTED]