>>I think you need to reevaluate what gets backed up, as well as the command used for copying the files. I don't know why you don't consider the Windows APIs, since inside the other methods, the Windows API ends up being used to perform the actual work, but many other options exist anyway.
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>Sorry Ed .. but how come it tell me It can't create the file when I using "COPY FILE" command ?
>And idea ?

Not without seeing the actual command you issued.