Thanks for your answers Jeff and Scott.
We had some internal discussions if we should provide the PDBs with the binaries of our product or not. The PDBs would ease finidng the cause of crashes at customer site. However, they are huge and contain information that makes reverse engineering easier. We found that there is a /PDBSTRIPPED linker switch (see http://msdn.microsoft.com/en-us/library/y87kw2fd.aspx ) that produces PDB files that "omit symbols that you would not want to ship to your customers".
So we tend to provide the stripped PDBs with the product and only give the full-blown PDBs to customers if we see no other way to find the cause of a crash.
What do you think about this approach?
We will test now if NSD works with this stripped PDB.