I've had this happen, and recently have seen a few posts to the list with the same problem. There is a registry setting that can be tweaked to alleviate this condition somewhat. By default, Mapinfo sets MaxFiles to 60. You can pump it up to 100 here: HKEY_LOCAL_MACHINE\SOFTWARE\Mapinfo\Mapinfo\Common\ If you don't already have one, add a new string variable called "MaxFiles" and set its value to 100. Mine actually is set to 200, but I was just being greedy; the additional 100 neither hurts nor helps. I am using NT 4.0, and can't verify that it will be the same procedure for 95/98. While this might provide just enough extra file handles to get your job done, you can still hit the wall if your job is complex enough. The wall is just a little bit farther away now. The real solution here would be for Mapinfo to properly clean up after itself and close all of those temp files that it no longer needs. Good luck. -Tim Nuteson Dayton Hudson Corporation Minneapolis, MN USA [EMAIL PROTECTED] ------------------( Forwarded letter 1 follows )-------------------- Date: Fri, 20 Aug 1999 10:18:44 +0100 To: [EMAIL PROTECTED] From: [EMAIL PROTECTED] Sender: [EMAIL PROTECTED] Subject: MI "TOO MANY FILES OPEN" during areaoverlap() Dear all, While performing a series of AreaOverlap calculations, I am getting the MapInfo error message "Too many files open". In reality there are only 3 tables open, so I presume the "files" are internal temp files. Is there anything I can do about this please ? Thanks, Rob Jones, Head of Geographical Information Unit, Countryside Council for Wales. ---------------------------------------------------------------------- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED] ---------------------------------------------------------------------- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]