Debug symbols in Crash Reporter

Hi,
we have a team consisting of programmers, designers and art. When the game crashes while not running from visual studio the Crash Reporter shows the callstack without symbols regardless the .pdb files are on every machine. How can I load the symbols for the crash reporter? Or is there any other way to debug crashes once they occur without visual studio connected? Thanks for your help.

Closed, because of duplication:

https://answers.unrealengine.com/questions/165745/debug-symbols-in-crash-reporter.html