The pages on this site contain documentation for very old MS-DOS software,
purely for historical purposes.
If you're looking for up-to-date documentation, particularly for programming,
you should not rely on the information found here, as it will be woefully
out of date.
SYS1066
SYS1066Explanation
When the destination file and one of the source files share the same name,
the shared name must be the same as the first source file listed for the
COPY command.
Action
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