RemoveUsersFromEncryptedFile function (winefs.h)
Removes specified certificate hashes from a specified file.
Syntax
DWORD RemoveUsersFromEncryptedFile(
[in] LPCWSTR lpFileName,
[in] PENCRYPTION_CERTIFICATE_HASH_LIST pHashes
);
Parameters
[in] lpFileName
The name of the file.
[in] pHashes
A pointer to an ENCRYPTION_CERTIFICATE_HASH_LIST structure that contains a list of certificate hashes to be removed from the file.
Return value
If the function succeeds, the return value is ERROR_SUCCESS.
If the function fails, the return value is a system error code. For a complete list of error codes, see System Error Codes or the header file WinError.h.
Remarks
The RemoveUsersFromEncryptedFile function removes the specified certificate hashes if they exist in the specified file. If any of the certificate hashes are not found in the specified file, they are ignored and no error code is returned.
Starting with Windows 8 and Windows Server 2012, this function is supported by the following technologies.
| Technology | Supported |
|---|---|
| Server Message Block (SMB) 3.0 protocol | Yes |
| SMB 3.0 Transparent Failover (TFO) | No |
| SMB 3.0 with Scale-out File Shares (SO) | No |
| Cluster Shared Volume File System (CsvFS) | No |
| Resilient File System (ReFS) | No |
SMB 3.0 does not support EFS on shares with continuous availability capability.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP Professional [desktop apps only] |
| Minimum supported server | Windows Server 2003 [desktop apps only] |
| Target Platform | Windows |
| Header | winefs.h (include Windows.h) |
| Library | Advapi32.lib |
| DLL | Advapi32.dll |
| API set | ext-ms-win-advapi32-encryptedfile-l1-1-1 (introduced in Windows 10, version 10.0.14393) |