Calling a WebDynpro application from Workflow task without UWL?

Dear all,

I have a requirement to call Webdynpro application from workflow task.

I have found few solutions for this using UWL, where the workitem can be read through portal.

As we are not using portal, i can't use this approach.

Is there any way that i can achieve this without UWL? How to move data between workflow container and Webdynpro application?

Please help.

Thanks,

Vamshi