call dll file from webdypro

Hi Experts

     Recently we use ole to call a *.dll file to access a JSP system, and we already complete all requirement in SAP R3,but when we implement in webdynpro, we found ole cant work in webdynpro, could u give some advise?

    How to call dll in webdynpro? or give some other solution? 

    BTW, the parameter of dll is a url and some post data.

    thank u:)