Struts runs under a Java Application Server. While A Struts application works just fine with an IIS webserver forwarding to a Java Application server, it will not work with IIS alone.
Furthermore, a DLL will not run on Linux. End of conversation. If you want your application to work on linux, you will either have to rewrite the dll code in Java, or compile the code in the dll into a .so file usable on Linux. [ November 06, 2006: Message edited by: Merrill Higginson ]