What's a PDB file?
.net, pdb-files
Solution
A Program Data Base file has nothing to do with incremental linking and Project State! PDB files are used to map EXE with SOURCES. They are used for Debug and Release binaries. Here an article that explains this binding link between an Executable Image and its PDB file
Problem
What's the PDB files inside the .NET dll files and what it does? Usually peoples remove this file in deploying and only keep the dll file in lib folders but it seems nothing happened and everything works well...