We have over 60,000 registry entries like this (the child# is essentially the only variation) on our web server (host for Crystal Server) HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\eventlog\Application\BusinessObjects_VMVINTRA.AdaptiveJobServer_CHILD10030_DestinationWrapper.
It appears that this volume may be the cause of server crashes that have just started by have been repeated over the course of a couple days. I have not been able to identify where these are coming from or how to clear them - other than singly which is obviously not satisfactory.
It's also possible that these are a symptom of other problems rather than the cause.
What appears to be happening is our publications (emailed) continue to function but the email is not getting delivered. The various web apps continue to function but we can't connect to the server and a hard shut down is required. When the server comes back up the pending publications get delivered.