I think the parameter workfloeDir takes the workflow directory.
The value i have mentioned ""D:\KNIME\Workflows"" is the directory which contains the workflow (in .zip format. the Same i have attached in my previous message)
"It's also possible to change the configuration of the workflow through workflow variables. If you create a workflow variable, say parameter of type Integer, configure a node in the workflow so that it uses the value of the variable where you want the user to parameterize the node. If you run the workflow now in the batch mode, you can specify the -workflow.variable=name,value,typeoption to set a new value before the flow gets executed. For example, to set the value 5 to the parameter integer variable, call the batch executor like this: knime -nosplash -application org.knime.product.KNIME_BATCH_APPLICATION -workflow.variable=parameter,5,int -workflowDir="workspace/KNIME_project"" - http://tech.knime.org/faq
If you configure the nodes using workflow variables you can set these in the command.