Would anyone have a clue as to what this might be. Trying to help a fella figure out if he needs it or not. Found in XP Pro. He says it's the label of a subdirectory he found & is several hundred Mb in size. Also stated this:Neither regedit or msconfig show anything. There are 4342 files in the cache dating from 10/21/05 to 11/11/05. There are long stretches of files only minutes apart. The whole thing looks like some sort of activity log, but I can't open any of the files to look. There doesn't seem to ba any trace of the program that created them however. Any ideas? I did a web search with no resuts, & even nothing on Microsofts Knowledgebase.