The NTMS_MOUNT_INFORMATION structure defines mount information for the management of removable storage libraries.

 typedef struct _NTMS_MOUNT_INFORMATION {
   DWORD dwSize;
 #ifdef __midl
   [ptr] LPNTMS_ASYNC_IO lpReserved;
 #else
   LPVOID lpReserved;
 #endif
 } NTMS_MOUNT_INFORMATION,
  *LPNTMS_MOUNT_INFORMATION;

dwSize: The size, in bytes, of the structure.

lpReserved: Unused. This value MUST be NULL and MUST be ignored on receipt.