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Asked: 2026-05-18T10:11:54+00:00

According to http://msdn.microsoft.com/en-us/library/yd4f8bd1.aspx there’s 2 .pdb files for a project. project.pdb I use to

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According to http://msdn.microsoft.com/en-us/library/yd4f8bd1.aspx there’s 2 .pdb files for a project.

project.pdb I use to allow loading minidumps later on, but what exactly is vcx0.pdb used for? If it’s missing, it’s not a problem, and I don’t need to store it for anything.

I’m trying to share a PCH amongst different projects and this file is the only thing causing problems. If I copy the vcx0.pdb created with the PCH to all projects, those projects use this file as a base and add their own symbols to it. If don’t give those projects this .pdb file, they fail.

A couple of things I noticed:

  • Warning LNK4099 reporting a missing vcx0.pdb doesn’t seem to be anything critical.
  • If I point multiple projects to the same file using /Fd, and disable parallel building to make that work, every project keeps incrementing with their own symbols
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1 Answer

  1. Editorial Team

    VCx0.PDB is generated by the compiler and has type information. It is input to the linker.

    The linker outputs $(TargetName).PDB

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