say the leastthere may be some magical windows setting to work around this featurebut gave up hunting for one as soon as realized that it would be easier to code copier in python the cpall py script in example - is one way to do it with this scripti control what happens when bad files are found-- can skip over them with python exception handlersfor instance moreoverthis tool works with the same interface and effect on other platforms it seems to meat leastthat few minutes spent writing portable and reusable python script to meet need is better investment than looking for solutions that work on only one platform (if at allexample - pp \system\filetools\cpall py ""###############################################################################usage"python cpall py dirfrom dirtorecursive copy of directory tree works like "cp - dirfrom/dirtounix commandand assumes that dirfrom and dirto are both directories was written to get around fatal error messages under windows drag-and-drop copies (the first bad file ends the entire copy operation immediately)but also allows for coding more customized copy operations in python ###############################################################################""import ossys maxfileload blksize def copyfile(pathfrompathtomaxfileload=maxfileload)""copy one file pathfrom to pathtobyte for byteuses binary file modes to supress unicde decode and endline transform ""if os path getsize(pathfrom<maxfileloadbytesfrom open(pathfrom'rb'read(read small file all at once open(pathto'wb'write(bytesfromelsefilefrom open(pathfrom'rb'read big files in chunks fileto open(pathto'wb'need mode for both while truebytesfrom filefrom read(blksizeget one blockless at end if not bytesfrombreak empty after last chunk fileto write(bytesfromdef copytree(dirfromdirtoverbose= )""copy contents of dirfrom and below to dirtoreturn (filesdirscountsmay need to use bytes for dirnames if undecodable on other platformsmay need to do more file type checking on unixskip linksfifosetc ""fcount dcount for filename in os listdir(dirfrom)for files/dirs here copying directory trees