Copies the EFS metadata from one file or directory to another
#include <WinAPIFiles.au3>
_WinAPI_DuplicateEncryptionInfoFile ( $sSrcFilePath, $sDestFilePath [, $iCreation = 2 [, $iAttributes = 0 [, $tSecurity = 0]]] )
| $sSrcFilePath | The name of the file or directory from which the EFS metadata is to be copied. This source file or directory must be encrypted. |
| $sDestFilePath | The name of the file or directory to which the EFS metadata is to be copied. This destination file or directory does not have to be encrypted before the call to this function. If the source is a file, this parameter must also specify a file, and likewise for directories. |
| $iCreation | [optional] Specifies how the destination file or directory is to be opened. The following are the valid values of this parameter: $CREATE_NEW $CREATE_ALWAYS (Default) |
| $iAttributes | [optional] The file attributes of the destination file or directory. The $FILE_READ_ONLY attribute is currently not processed by this function. |
| $tSecurity | [optional] $tagSECURITY_ATTRIBUTES structure that specifies the security attributes of the destination file or directory, if it does not already exist. If this parameter is 0 (Default), the file or directory gets a default security descriptor. The access-control lists (ACL) in the default security descriptor for a file or directory are inherited from its parent directory. |
| Success: | 1. |
| Failure: | 0 and sets the @error flag to non-zero, @extended flag may contain the system error code. |
The caller should have the EFS key for the source file or directory, and at least the $READ_ATTRIBUTE ACL for the source file or directory.
The specified source and destination file or directories should reside on the same computer; otherwise, the function fails.
Search DuplicateEncryptionInfoFile in MSDN Library.