just saw your post. Maybe the built-in command "eventcreate" under Windows is what you are looking for? It ships with newer Windows versions and generates eventlog entries from commandline. So if you build a loop around it it may be able to fill your eventlog with errors. here is an example: eventcreate /T ERROR /ID 4711 /L APPLICATION /D "This is a demo error!" or: eventcreate /T WARNING /ID 4712 /L SYSTEM /D "just a warning in the system log" ... View more