Hi,<BR><BR>I&#039;ve got a problem that&#039;s driving me crazy. I have a .net dll that does some file operations using System.IO.File (Copy, move, etc.).<BR><BR>When I make calls to this dll from asp.net, the file operations are successful but the copied/moved files are sometimes (intermittently) locked with a sharing violation. If I do an iisreset or otherwise kill the asp process, the files are released.<BR><BR>I have had some success replacing System.IO.File with direct api calls (MoveTo and CopyTo in Kernel32) and the problem still occurs, but less frequently.<BR><BR>It seems like the asp process is having problems letting go of static routines.<BR><BR>Has anyone experienced anything like this?