Download and install Resin into your preferred directory. From now on, the directory where you installed Resin will be referred to as $JBOSS_HOME.

Download and install JDK 5 . Set an environment variable called %JAVA_HOME% to point to your JDK directory.

Download MySQL from www.mysql.com and install.

Edit $RESIN_HOME/conf/resin.conf.

replace lines 60-64

<class-loader>
      <tree-loader path="${resin.home}/lib"/>
      <tree-loader path="${server.root}/lib"/>
    </class-loader>

with

<class-loader>
      <tree-loader path="${resin.home}/lib"/>
      <tree-loader path="${server.root}/lib"/>
      <compiling-loader path="${server.rootDir}/common/classes"/>
      <library-loader path="${server.rootDir}/common/lib"/>
    </class-loader>

add:

<database>
		<jndi-name>jdbc/LiferayPool</jndi-name>
		<driver type="com.mysql.jdbc.Driver">
		<url>jdbc:mysql://localhost/lportal?useUnicode=true&amp;characterEncoding=UTF-8</url>
			<user></user>
			<password></password>
		</driver>
		<prepared-statement-cache-size>8</prepared-statement-cache-size>
		<max-connections>20</max-connections>
		<max-idle-time>30s</max-idle-time>
	</database>

	<resource jndi-name="mail/MailSession" type="javax.mail.Session">
		<init>
			<mail.store.protocol>imap</mail.store.protocol>
			<mail.transport.protocol>smtp</mail.transport.protocol>
			<mail.imap.host>localhost</mail.imap.host>
			<mail.pop3.host>localhost</mail.pop3.host>
			<mail.smtp.host>localhost</mail.smtp.host>
		</init>
	</resource>

	<system-property javax.xml.parsers.DocumentBuilderFactory="org.apache.xerces.jaxp.DocumentBuilderFactoryImpl" />
	<system-property javax.xml.parsers.SAXParserFactory="org.apache.xerces.jaxp.SAXParserFactoryImpl" />
	<system-property javax.xml.transform.TransformerFactory="org.apache.xalan.processor.TransformerFactoryImpl" />
	<system-property org.xml.sax.driver="org.apache.xerces.parsers.SAXParser" />

Go to $RESIN_HOME and create new directory common\lib. Download mysql-connector-java-{$version}-bin.jar and copy to this directory. (This is the JDBC connector for MySQL, for other databases, go to appropriate website to download.)

Populate your database with the portal schema and default data.

Download portlet.jar and portal-kernel.jar from Liferay Portal 4.1 Dependencies and copy to $RESIN_HOME\common\lib.

Delete contents of $RESIN_HOME\webapps\ROOT.

Unzip liferay-portal-pro-4.x.war to $RESIN_HOME\webapps\ROOT.

Download liferay-portal-ent-4.0.0-src.zip.

Go to $RESIN_HOME\bin and create run.bat.

..\httpd.exe -Xmx512m -Dfile.encoding=UTF-8 -Duser.timezone=GMT

Start Resin. Open your browser to http://localhost:8080. Click on My Liferay at the upper right hand corner to enter the login screen. Your login is [email protected] and your password is test.