Moss has a crash handler which makes it creates a dmp file when it crashes , the only known case where there is no dmp is if Moss get killed by an external process.
in log you provided the only specific things I see are :
– Webroot SecureAnywhere is not a common AV , try to disable it or use another AV
– same with Gaijin agent
– msiexec should be here all times either ( but dont delete it )