WIM_MSG_STALE_MOUNT_FILE
Sent to a WIMMessageCallback function to tell the caller how many stale files were removed.
WIM_MSG_WARNING_STALE_MOUNT_FILE
wParam = (ULONG) FilesDeleted;
lParam = (WCHAR) DriveLetter;
Parameters
wParam
[in] A ULONG value indicating how many stale files were deleted.
lParam
[in] A WCHAR value indicating which drive letter was scanned.
Return Value
Your routine must return WIM_MSG_SUCCESS.