Help with windows TCP Port communication

I'm new to understanding how interprocess communication works. I"m working with two applications on my localmachine, a Source Application and a Server Application. The Source application broadcasts files through a configured port on my pc. The Server application listens for those files and exposes them to the internet for users to stream.

I want to remove the Server application from the equation and write a new application to communicate with the Source application.

So far I have my application connected to the port and listening. I am able to receive a message from the port. The message i am receiving appears to be metadata, no file. My assumption is the Server Application sends a response once it has picked up this metadata information to obtain the file. Therefore my application needs to mimic the server application. However I have no idea how to respond to the source application's port.

1) Is there a tool I can use to monitor the communication between the Source application and the server application? I believe this would be a tool to watch for tcp messages? All the tools I come across appear to only look for http messages. Would a packet analyzer be of any use?

2) If I can't view the communication between the source and the server application, what else can I do? Is there a tool I can use to broadcas开发者_如何学Pythont the meta information I"m receiving on a port, then point the server application to that port and receive a response?

Any resources to help me better understand this intercomunication process would be greatly appreciated.

Yes, you can use Wireshark. It can monitor any TCP (and mucn more) communication, including local.

Use Microsoft Network Monitor 3.3, very easy to use.