Just a quick note on this, in case there are people out there scratcing their heads over the errormessage ”Using ‘dbghelp.dll’ version ‘4.0.5’” showing up over and over again in the SQL Server Errorlog for no apparent reason.
It can show up for many reasons of course, since it is written to the errorlog when sqldumper.exe is used. In many cases, this is then an indication of something bad going on in your system.
But, then again, if you see it all the time for no good reason, it is msot likely related to an Extended Event script, specifically one referencing the dmv sys.fn_xe_file_target_read_file wich is used to read the results from Extended Events. And in that case, there is nothing to worry about, you can safely ignore the message