Closing files and folders ussing batch

Im trying 开发者_Go百科to close a file (not an application) ussing batch. I namely need particular files and folders closed to execute a delete option. i have noted that open files and folders will not delete.

If you are on a Windows environment, there are a lot of utilities to do that. See for example http://www.thefreecountry.com/utilities/deletelockedfiles.shtml