1)
AdventNet EventLog Analyzer Free Edition 4.0
EventLog Analyzer is a web-based event management tool that collects, analyzes, and reports on event logs from enterprise-wide Windows and UNIX systems.
2)
EventMeister 3.0
EventMeister is a powerful solution to centrally monitor and analyze Windows Event Logs. It will alert you to security issues and other critical events, facilitate archiving of log data and assist with analysis and meeting audit requirements.
3)
ManageEngine EventLog Analyzer 4.0
EventLog Analyzer is a web-based event management tool that collects, analyzes, and reports on event logs from enterprise-wide Windows and UNIX systems.