![]() If you don’t feel like building the tool from source, check out the Releases section on the GitHub to find the latest prebuilt executable. Standard network analysis tools like Wireshark can read this format. ĮTL2PCAPNG takes an ETL file that was generated using NETSH and converts the network frames to a new version of the CAP format, called PCAPNG. ![]() Using the official Microsoft GitHub repo, he wrote and published an open source tool that does exactly that, named ETL2PCAPNG. In this case, it turns out one of our Microsoft Developers, Matt Olson, thought of this already. Welcome to the world of Open Source software. How can we convert these ETL files that the built-in tooling generates? Installing another tool on your systems to capture network traces isn’t always going to be an acceptable option in many companies either. Surely, our customers will want to be able to generate and analyze their own network traces without needing to rely on Microsoft Support. And there is no replacement in development as of the time of this posting. Even worse, Microsoft has pulled Microsoft Message Analyzer from all official download locations effective November 25 th, 2019. Microsoft Message Analyzer has been discontinued. I advised my customer to download this tool and use it to review the network traces while Support is doing the same. How do you get into that? Well, as I mentioned above, Microsoft has the Microsoft Message Analyzer which can open these files and even convert them to a format other networking tools can read. But the ETL file has all the network trace data. Microsoft Support will analyze the data and will report back with any conclusions or next steps.īut what if you want to review the captured data as well? S imply opening the CAB file you can see there are lots of TXT files with human readable S ystem I nformation, R egistry K eys, and Event L ogs. It also captures some related diagnostic information and compresses that information into a CAB file.Īt this point, S upport will ask for either the ETL file, or both the ETL and CAB file depending on the information they are looking for, to be uploaded for analysis. Notice that NETSH trace generated an ETL file and saved i t in the folder specified when starting the trace. Once reproduced, stop the trace to generate the ETL file. With the trace now running, the issue now needs to be reproduced. Use the switches they provide you if asked.) (Note: If working with Microsoft Support, the Support Engineer may give you a slightly modified version of this command to enable certain trace options specific to your reported issue.
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