In previous versions of Windows (3.1,95 etc) when files were coppied to another location Windows used a block copy method taking the associated slack space with the file. Using win XP,VISTA,7, Or recent server versions, is the block copy still being used when transfering files, or is the current implementation a true end of file copy or even a bit level copy? Where can I find this information? If the current implementaiton for a standard copy is a true end of file, I can avoid the expense of a third party utility.

Hello, Did you ever get an answer to this question (from any source)? I was under the impression that the newer operating systems do a true to "end-of-file" copy with no slack space, but I'm being asked to provide documentation to back it up.

Just wondering if there was an answer to this thread??Thomas Talley

Where is the evidence that your assertions are true. I just went through the Dos programming functions. There is no copyfile function at all. Programs read and write a file to copy. -- . -- "Thomas Talley" wrote in message news:6b3ad1b1-c59c-4091-a0af-4abae98fe3cf... Just wondering if there was an answer to this thread?? Thomas Talley