Visual Studio生成的*.pdb文件备份建议：是否可跳过vc141.pdb等文件？
Great question—this is a common point of confusion when managing debugging artifacts, so let’s break it down clearly based on how PDB files work.
Non-Negotiable: Backup Your Custom PDB Files First
First and foremost: you must backup all PDB files generated for your own executable files. These files contain critical debugging information specific to your code—like function names, variable types, line number mappings, and stack trace details. Without matching PDBs for your custom binaries, you’ll be stuck trying to debug crash dumps with meaningless memory addresses instead of readable call stacks and variable names. Always pair each build of your executable with its exact corresponding PDB (they’re tied via a unique debug ID, so mismatched versions won’t work).
What About VC141.pdb/VC142.pdb?
These are the PDB files for the Visual C++ Runtime (CRT) libraries included with your version of Visual Studio (vc141 corresponds to VS 2017, vc142 to VS 2019, etc.). Whether you need to store them depends on your setup:
If you have internet access during debugging: You don’t need to store these yourself. Visual Studio is designed to automatically fetch matching CRT PDBs from Microsoft’s public symbol server when you debug a crash dump. This is the recommended approach—it saves you disk space, ensures you get the exact version matching your runtime, and you don’t have to manage updates to these files.
If you’re working offline or have restricted network access: It makes sense to backup the specific VC14x.pdb files that correspond to the toolchains you actually use for your projects. No need to hoard every possible vc14x version—just the ones tied to the VS versions you build with. Keep them in a local symbol store, and configure Visual Studio to use this local store for debugging.
Final Recommendation
Prioritize backing up all custom PDBs for your own executables—this is non-negotiable for effective crash dump debugging. For VC14x.pdb files:
- Use Microsoft’s symbol server if you can (internet access)
- Backup only the versions you actively use if you’re offline
内容的提问来源于stack exchange，提问作者WhileTrueSleep
