Setting Of Environment Variables: 

List all the environment variables in a file and name it as a .bat file. Now run the bat file

The Contents of 1.bat file are

SET ANT_HOME=Y:\Ant\Jakarta-ant-1.3
SET JBOSS_HOME=Y:\JBoss-2.4.0_Jetty-3.1.RC8-1\JBoss-2.4.0_Jetty-3.1.RC8-1
SET JAVA_HOME=C:\jdk1.3.1
SET PATH=%PATH%;%ANT_HOME%\bin
SET JBOSS_DIST=Y:\JBoss-2.4.0_Jetty-3.1.RC8-1\JBoss-2.4.0_Jetty-3.1.RC8-1\jboss