[ecfisa]

Hola jbecerra.

Espero haber entendido...

Para Windows:

Código Delphi [-]
... 
implementation

uses Windows, ShellApi;   

procedure CopyFolderFiles(sourceFolder, targetFolder: string);
const
  FOF_NORECURSION = $1000;
var
  SHFOS: SHFILEOPSTRUCT;
begin
  sourceFolder:= IncludeTrailingPathDelimiter(sourceFolder)+'\*.*';
  targetFolder := ExcludeTrailingPathDelimiter(targetFolder);
  ZeroMemory(@SHFOS, SizeOf(SHFOS));
  SHFOS.wFunc:= FO_COPY;
  SHFOS.fFlags:= FOF_FILESONLY or FOF_NORECURSION;
  SHFOS.hNameMappings:= nil;
  SHFOS.pFrom:= PChar(sourceFolder+#0+#0);
  SHFOS.pTo:= PChar(targetFolder+#0+#0);
  SHFileOperation(SHFOS);
end;

Llamada ej.:

Código Delphi [-]
begin
   CopyFolderFiles2('C:\UNA_CARPETA', 'C:\OTRA_CARPETA');

Saludos