i have tried to install xeam and smtp proxy both reported same error on my win2003 sp2 with kaspersky business space / server edition installed following is the disgest of the log file that might indiate the clue to the problem --------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------- 2009-11-04 09:53:12,107 INFO sradef.BootLoader - Database started. 2009-11-04 09:53:12,154 INFO sradef.BootLoader - Starting web server on port: 5050 2009-11-04 09:53:13,529 ERROR http11.Http11BaseProtocol - Error initializing endpoint java.net.BindException: Cannot assign requested address: JVM_Bind:5050 at org.apache.tomcat.util.net.PoolTcpEndpoint.initEndpoint(PoolTcpEndpoint.java:297) at org.apache.coyote.http11.Http11BaseProtocol.init(Http11BaseProtocol.java:138) at org.apache.catalina.connector.Connector.initialize(Connector.java:1016) at org.apache.catalina.startup.Embedded.start(Embedded.java:826) at com.synametrics.sradef.b.a(Unknown Source) at com.synametrics.sradef.BootLoader.c(Unknown Source) at com.synametrics.sradef.BootLoader.b(Unknown Source) at com.synametrics.sradef.BootLoader.main(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.tanukisoftware.wrapper.WrapperSimpleApp.run(WrapperSimpleApp.java:108) at java.lang.Thread.run(Unknown Source) 2009-11-04 09:53:13,529 WARN sradef.BootLoader - Could not start the web server. Will try again... --------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------- I tried to alter the port to something silly like 2805 in case some services uses 5050 but still get the same error any ideas anyone ?