Problem installing and starting OpenDMTP serv

[Mijo]

Hello, I have been struggling to install OpenDMTP on windows. I followed the instructions in the readme.txt
Here is my java version

C:\DMTP\bin>java -version
java version "1.6.0_21"
Java(TM) SE Runtime Environment (build 1.6.0_21-b06)
Java HotSpot(TM) Client VM (build 17.0-b16, mixed mode, sharing)

Build with ant went fine. When I  try to start the server, I get the error

C:\DMTP\bin>server_file
Exception in thread "main" java.lang.NoClassDefFoundError: org/opendmtp/server_f
ile/Main
Caused by: java.lang.ClassNotFoundException: org.opendmtp.server_file.Main
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
Could not find the main class: org.opendmtp.server_file.Main.  Program will exit

I have JAVA_HOME set to C:\Program Files\Java\jre6\bin
I tried changing it to c:\sun\sdk\bin
but it didn't help.
Appreciate if you can help with this , with a bit detailed instructions for a newbie
Thanks

[Mijo]

Sorry, my bad. The issue was due to my running the server from the bin directory. Server working now