AMFVO is short for Action Message Format (AMF) Value Object (VO).
AMF is a binary format used to serialize ActionScript objects, primarily used to exchange data between a Flash application and a remote service; a VO is also known as a Data Transfer Object (DTO), it is used to transfer data between application subsystems.
An AMFVO is simply a value object used to transfer ActionScript objects between a Flash application and a remote service.
The most widely used AMF encoding framework for .Net is FlourineFX.
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