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)   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.