jadclipse Error during DECOMPILATION REPORT-Collection of common programming errors

I am using Eclipse Helios Version and imported an existing project into IDE.

This Project is consisting some code in form of Jar files

So I have installed Jad Eclipse plugin .

Now my question is from the IDE Whenever i click class (Ctrl + Mouse) which is in jar files , instead of java file ,i m getting this

/*jadclipse*/

/*
    DECOMPILATION REPORT

    Decompiled from: C:\Documents and Settings\Sai\Desktop\work\kiuybon-1.1.jar
    Total time: 0 ms
    Jad reported messages/errors:
    Exit status: 0
    Caught exceptions:
java.io.IOException: Cannot run program "jad" (in directory "C:\Documents and Settings\Sai\.net.sf.jadclipse\1321168101468"): CreateProcess error=2, The system cannot find the file specified
    at java.lang.ProcessBuilder.start(Unknown Source)
    at java.lang.Runtime.exec(Unknown Source)
    at net.sf.jadclipse.JadDecompiler.decompile(JadDecompiler.java:160)
    at net.sf.jadclipse.JadDecompiler.decompileFromArchive(JadDecompiler.java:217)
    at 

Originally posted 2013-11-10 00:12:22.