Wireshark is still listed, it's a lot more powerful and open source: https://chocolatey.org/packages/wireshark
If you want an open-source alternative to Fiddler, consider mitmproxy [1].
http://tcpreplay.appneta.com/wiki/overview.html
Whilst it doesn't do everything that Fiddler does, and isn't open-source, I'd say Postman is worth a look for playing around with HTTP requests. The user interface is a lot more user friendly (in my opinion):
Which is not to say that Postman is not good at what it does do.
FWIW, I've also had bluescreens on Windows from a certain combination of NPCAP and an Intel Ethernet driver.