I installed Trace Analyzer 11.2.6.1 (metalink note 224270.1) to see how it works with large amounts of 10046 level 12 trace files. 600MB of trace files were transformed into a 75MB html result file. Did you ever try to open a 75MB html file in IE7 ? Well, it doesn't. In case of so much extracted information, such a tool should split up the result in multiple smaller files just as RDA does. Fortunately there was also a 30MB text file generated as well Anyone else got experience with this trace analyzer? Andre