dnSpyEx: .NET debugger and assembly editor

DnSpy was great. The author (d4d) did many great things for the world of .net reversing and binary analysis, including dnspy and dnlib. One day, i don&#x27;t know why, they archived most of their repositories.<p>I&#x27;m glad electrokill stepped up and maintains dnspyex now. This also shows how resilient open source can be - as long as someone wants to work on the project, it can go on forever.

Love this tool, used it mod a Unity game and learn all the internals to see how to integrate my mod with the base game. Was an invaluable resource. It also taught me a lot about how they made that game (Lethal Company) and how it was truly made to ship&#x2F;get the idea out the door and not for perfection&#x2F;maintainable code.<p>~~IIRC the maintainer was like 15 years old?~~ Edit: My mistake, the maintainer is 18, <a href="https:&#x2F;&#x2F;github.com&#x2F;ElektroKill">https:&#x2F;&#x2F;github.com&#x2F;ElektroKill</a>

Used dnSpy once to debug runtime IL-emited code as if it was C#. It managed to step into a generated emitted method, decompile it on the fly and set breakpoints on the decompiled C# code for subsequent hits. That was a mind-blowing at the time, nothing else was close and I&#x27;m not sure any other tool or IDE supports this even now. Though didn&#x27;t have a need for that since.

Used this to debug an application crash in a vendor&#x27;s proprietary windows app recently, and I was able to file a detailed bug report. (Though they decided it&#x27;s notabug, womp womp.)<p>You can install it with winget, but it&#x27;s very particular about whether you&#x27;re debugging a win32 or win64 app and it&#x27;s a bit of a pain to get it to install both or just win32. I wonder if it would be possible to have both bundled in the same installer and just automatically relaunch the app if you try to debug a program with a mismatching arch. Or just download from the releases page...

Great tool! Used to bypass a license in one .NET app where we really had bought a lifetime license but it still expired (we were in a hurry and didn&#x27;t receive the new one in time).<p>The authors homepage has a link to crash iPhone. I clicked it with Chrome on Windows and it crashed :D (<a href="https:&#x2F;&#x2F;elektrokill.github.io&#x2F;" rel="nofollow">https:&#x2F;&#x2F;elektrokill.github.io&#x2F;</a>).

Ahh I remember this. I used this to successfully bypass the registration of a small web scraper back in the day.

I remember using this tool back when I used Linux to patch a .NET project that had a bug that stopped it from working in Wine, and submitted the PR by just editing the original source file in the GitHub editor. Obviously Visual Studio doesn&#x27;t work as well on Wine and it&#x27;s like 100x bigger than dnSpy. Would do again

This is great news! Every time I used dnSpy I was blown away by how well made it was.<p>I still don&#x27;t know why the original dnSpy repo was archived suddenly. Every once in a while I would go check to see if there&#x27;s been any movement. I didn&#x27;t realize this project existed so thanks for sharing.

I once used dnSpy to patch a bug in a corporate application we were using. The original developer had left the vendor company, and they were trying to triage to an outsourced company who &quot;fixed it&quot; multiple times. It&#x27;s a valuable tool and great to see it&#x27;s continuing.

I use this tool for making mods for a game called From the Depths, which is made with Unity. I could not have made them without dnSpy!

This tool is amazing. Would love to extend it with varible-naming using LLMs iteratively

This looks like an amazingly useful tool. Would be great to see this for other languages.