All OnixS .NET Framework FIX Engine classes are located in the FIXForge.NET.FIX namespace.

The typical way of using OnixS .NET Framework FIX Engine is as follows:

1. Engine Initialization and Shutdown.
2. Selecting FIX Version.
3. Create the Session object (see FIX Session).
4. Establish the FIX session as Initiator or Acceptor (see Establishing FIX Connection).
5. Send and receive application-level FIX messages (see Exchanging Messages, FIX Message).
6. Disconnect the session.
7. Shutdown the Engine.

Check also following chapters:

1. Error Reporting
2. Licensing

• Error Reporting
• Licensing
• Engine Initialization and Shutdown
• Selecting FIX Version
• FIX Message
  • Manipulating Message Fields
• FIX Session
  • Establishing FIX Connection
  • Exchanging Messages
  • Message Sequence Numbers