Copy both the .DLL and .PDB files to your references folder. Visual Studio will pick up the .PDB file automatically and use the file paths to show source. You can also use Symbol Server and …

Apr 15, 2025 · To debug a DLL, you can start debugging from the calling app, or debug from the DLL project by specifying its calling app. You can also use the debugger Immediate window to …

Aug 16, 2021 · Starting with Visual Studio 2022 Preview 3, we are adding a new “External Sources” node in the Solution Explorer which will make debugging external sources files much …

Jul 23, 2019 · Do you have the debug symbols for the reference file in question? The simplest way to do this is to attach the project for the reference file to the solution for the application so …

Dec 6, 2016 · So now all set up and we can actually debug our third party DLLs. But we have no access to their source code — how can we debug them? We have several options depending …

If it is a file (dll) reference, you need the debugging symbols (the "pdb" file) to be in the same folder as the dll. Check that your projects are generating debug symbols (project properties => …

Dec 10, 2021 · The secret here is to go to Debug > Windows > Modules, select the DLL that contains the code we want to step into, and from the context menu, select "Decompile Source …

Apr 18, 2025 · If you want to break into code in a managed calling app from a native DLL, or vice versa, enable mixed mode debugging. In some scenarios, you might need to instruct the …

One way to debug a DLL project is to specify the calling app in the DLL project properties. This approach lets you start debugging from the DLL project itself. For this method to work, the app …

Dec 9, 2019 · We’ll see how to debug any .NET assembly that has no symbols or source code. There are many cases when there’s an exception in the 3rd-party code that you want to …