When attempting both a local or remote import of IIS W3C Web Server Logs or MSSQL Logs the import always fails with a message "Import of log file failed!"; however Importing  IIS W3C FTP Log's works fine every time. All three logs are from the same server.

I have checked and confirmed that IIS is logging in W3C Extended Log File Format.

I’ve also tested this from both a 2008 Server Running IIS 7 with SQL Server 2008 and a 2003 Server Running IIS 6 with SQL Server 2005.

Previously running EventLog Analyzer 6 Premium when the issue was discovered. Recently updated to version 7 and still experiencing the same issues.

Any ideas?