Tomcat multiple instances simultaneously

Let's say that you have only one Tomcat folder located in C:\apache-tomcat-7.0.39, and that you wish to run two instances from it.

Make sure that you have CATALINA_HOME system/user variable set, and pointing to C:\apache-tomcat-7.0.39

1. Create a folder C:\instance1. Copy conf, webapps and temp folders from C:\apache-tomcat-7.0.39 and paste them to C:\instance1. You can delete contents from webapps and temp folders located under instance1, but don't touch conf contents.
2. Now copy>paste C:\instance1 and rename it to instance2. That way, both instance1 and instance2 will have the same content.
3. Go to C:\instance2\conf, edit server.xml and change the numbers of these ports (I marked those as XXXX):
   <Server port="XXXX" shutdown="SHUTDOWN">
   <Connector port="XXXX" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" />
   <Connector port="XXXX" protocol="AJP/1.3" redirectPort="8443" />
4. Deploy whatever you want into instance1\webapps and instance2\webapps
5. Create the following 4 batch files under C:\

instance1_startup.bat

@echo off

set CATALINA_BASE=C:\instance1

cd "%CATALINA_HOME%\bin"

set TITLE=My Tomcat Instance 01

call startup.bat %TITLE%

instance1_shutdown.bat

@echo off

set CATALINA_BASE=C:\instance1

cd "%CATALINA_HOME%\bin"

call shutdown.bat

instance2_startup.bat

@echo off

set CATALINA_BASE=C:\instance2

cd "%CATALINA_HOME%\bin"

set TITLE=My Tomcat Instance 02

call startup.bat %TITLE%

instance2_shutdown.bat

@echo off

set CATALINA_BASE=C:\instance2

cd "%CATALINA_HOME%\bin"

call shutdown.bat

1. Run instance1_startup.bat and instance2_startup.bat, hopefully it should work.