UnmountVHD function
Unmounts a virtual hard disk file (.vhd file) that had been mounted with the MountVHD function.
Syntax
ULONG WINAPI UnmountVHD(
_In_ PWCHAR VHDFileName,
_In_ ULONG Flags
);
Parameters
-
VHDFileName [in]
-
A pointer to a null-terminated Unicode string that specifies the full path to the VHD file. Relative paths to the VHD file are not supported.
-
Flags [in]
-
This parameter is reserved. Use VHD_NORMAL (0).
Value Meaning - VHD_NORMAL
- 0
Unmount the VHD file normally. - VHD_FORCE_UNMOUNT
- 3
Force the system to unmount the VHD file without sending any device eject notification. This could result in a message being logged in the event viewer and data loss and corruption on the mounted file.
Return value
On successful call, the return value is ERROR_SUCCESS (0). Any of the system error codes can be returned. Common return values include the following.
| Return code/value | Description |
|---|---|
|
A value other than VHD_NORMAL (0) or VHD_FORCE_UNMOUNT (3) was passed in the Flags parameter. |
|
An error occurred while unmounting the file. |
|
The device is in use and cannot be unmounted. Passing VHD_FORCE_UNMOUNT in the Flags parameter can force the file to unmount. |
Requirements
| Download |
Microsoft Virtual Server 2005 R2 SP1 Update onWindows Server 2008orWindows Server 2003 |
| Header |
|
| Library |
|
| DLL |
|