WebORB for .NET was designed for universal connectivity, which means it supports multiple client-side technology connectivity with .NET server-sider resources. Multi-client support is especially important when you want to port an existing application to multiple client-side technologies, such as Flex and iOS. The client-side technologies currently supported by WebORB for .NET include:
WebORB provides full support for Flash remoting clients. Supported client applications can use either ActionScript version 2 and version 3 APIs. ActionScript version 2 clients should use Adobe's Flash Remoting components to connect to the WebORB server and invoke exposed services. The AS3 client applications can use the NetConnection API available in the Flash Player runtime environment.
In addition to Flash remoting, WebORB supports real-time messaging and video/audio streaming for remotely connected Flash clients via RTMP.

WebORB is an extremely powerful integration server that supports three fundamental Flex to .NET integration mechanisms:
Developers using FlashBuilder 4 will be pleased to find that WebORB provides a custom plugin for easy integration between FlashBuilder 4 and .NET (not something FlashBuilder provides).

WebORB for .NET enables cient/server integration between Silverlight clients and the .NET framework. Silverlight developers can enjoy the simplicity and ease-of-use of the client API, convenience of the deployment model, productivity tools like service browser and code generator and unmatched runtime performance. Silverlight integration is enabled through a Silverlight component. Once imported into a Silverlight client application, the component provides the capability to bind and invoke methods on remote .NET classes deployed in a WebORB-enabled ASP.NET application.

The WebORB JavaScript library is an AJAX-based implementation that enables browser clients to communicate with the WebORB server. The library is a set of routines, communication protocol implementation, tools and software components that facilitates the development of web-based rich client applications. By hiding the complexity of the underlying communication mechanism, the system provides a cross-browser, easy-to-use application program interface (API).

WebORB fully supports the JSON format for remote method invocations. Any deployed service, including .NET classes from class libraries, WCF services, Spring.NET objects, NHibernate models and Web Services, can be invoked from a JSON client. All server-side features, including service security, service activation, service and argument factories, invocation monitoring, and abstract arguments, are applicable to the JSON invocations.