Starting JBoss 4

[Lahiru Abeydeera]

I downloaded JBoss 4 and clicked run.bat then I get the following error
Can anyone tell me how to correct this

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JBoss Bootstrap Environment
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JBOSS_HOME: C:\Documents and Settings\labeydeera\Desktop\jboss-4.0.0\bin\\..
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JAVA: C:\Program Files\Java\jdk1.5.0_01\bin\java
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JAVA_OPTS: -Dprogram.name=run.bat -Xms128m -Xmx512m
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CLASSPATH: C:\Program Files\Java\jdk1.5.0_01\lib\tools.jar;C:\Documents and Se
ttings\labeydeera\Desktop\jboss-4.0.0\bin\\run.jar
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===============================================================================
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Exception in thread "main" java.lang.NoClassDefFoundError: and
Press any key to continue . . .

[Sanju Thomas]

Please make sure that your JAVA_HOME environment variable is already set.

[norman richards]

Also, make sure you don't install JBoss in a directory that contains spaces in the path.