Using Custom Java Class - WorkflowRegistry.xml

I am using a custom java class in workflow. While executing I am getting errot -

com.waveset.util.WavesetException: Class com.LdapGroupMod is not a WorkflowApplication

It seems from documentation that I need to add this in workflowregistry.xml file. I added the same like given below -

<WorkflowApplication name='Workflow Name'

class='com.LdapGroupMod'>

<Comments>Nothing Here</Comments>

</WorkflowApplication>

Even tried restaring the application server but I am still getting same error.Any idea what needs to be done here? or I am missing smething?

[688 byte] By [pankajanand] at [2007-11-26 11:21:30]