To run a java program on windows xp startup

hi ,
i have a sample HelloWorld.java program.
i wrote a batch file to run this program as follows:
set PATH=%PATH%;C:\Program Files\Java\jre1.6.0\bin;
cd c:\test
java HelloWorld
This program runs when i click on the bat file.
Next i add this batch file to registry to auto-start on windows startup
However, on windows startup, i get the following:
Exception in thread "main" java.lang.NoClassDefFoundError
Anyone can help me? Thank you in advance!

Hi Sergi,
Thanks for the info. I couldn't able to login because of my internet connection.
Thanks,
--Srini                                                                                                                                                                                                                           

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