diff --git a/Ext2Mgr/mountmgr.h b/Ext2Mgr/mountmgr.h
new file mode 100644
index 0000000..f618372
--- /dev/null
+++ b/Ext2Mgr/mountmgr.h
@@ -0,0 +1,99 @@
+#ifndef MOUNTMGR_H
+#define MOUNTMGR_H
+
+/* This is a subset of mountmgr.h from the WDK (Windows Driver Kit)
+* included to make it easier to compile the application separately
+* without installing the WDK.
+*/
+
+#define MOUNTMGRCONTROLTYPE                         0x0000006D // 'm'
+#define MOUNTDEVCONTROLTYPE                         0x0000004D // 'M'
+
+//
+// These are the IOCTLs supported by the mount point manager.
+//
+
+#define IOCTL_MOUNTMGR_CREATE_POINT                 CTL_CODE(MOUNTMGRCONTROLTYPE, 0, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
+#define IOCTL_MOUNTMGR_DELETE_POINTS                CTL_CODE(MOUNTMGRCONTROLTYPE, 1, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
+#define IOCTL_MOUNTMGR_QUERY_POINTS                 CTL_CODE(MOUNTMGRCONTROLTYPE, 2, METHOD_BUFFERED, FILE_ANY_ACCESS)
+
+#define IOCTL_MOUNTMGR_VOLUME_ARRIVAL_NOTIFICATION  CTL_CODE(MOUNTMGRCONTROLTYPE, 11, METHOD_BUFFERED, FILE_READ_ACCESS)
+
+//
+// Input structure for IOCTL_MOUNTMGR_CREATE_POINT.
+//
+
+typedef struct _MOUNTMGR_CREATE_POINT_INPUT {
+    USHORT  SymbolicLinkNameOffset;
+    USHORT  SymbolicLinkNameLength;
+    USHORT  DeviceNameOffset;
+    USHORT  DeviceNameLength;
+} MOUNTMGR_CREATE_POINT_INPUT, * PMOUNTMGR_CREATE_POINT_INPUT;
+
+//
+// Input structure for IOCTL_MOUNTMGR_DELETE_POINTS,
+// IOCTL_MOUNTMGR_QUERY_POINTS, and IOCTL_MOUNTMGR_DELETE_POINTS_DBONLY.
+//
+
+typedef struct _MOUNTMGR_MOUNT_POINT {
+    ULONG   SymbolicLinkNameOffset;
+    USHORT  SymbolicLinkNameLength;
+    USHORT  Reserved1;
+    ULONG   UniqueIdOffset;
+    USHORT  UniqueIdLength;
+    USHORT  Reserved2;
+    ULONG   DeviceNameOffset;
+    USHORT  DeviceNameLength;
+    USHORT  Reserved3;
+} MOUNTMGR_MOUNT_POINT, * PMOUNTMGR_MOUNT_POINT;
+
+//
+// Output structure for IOCTL_MOUNTMGR_DELETE_POINTS,
+// IOCTL_MOUNTMGR_QUERY_POINTS, and IOCTL_MOUNTMGR_DELETE_POINTS_DBONLY.
+//
+
+typedef struct _MOUNTMGR_MOUNT_POINTS {
+    ULONG                   Size;
+    ULONG                   NumberOfMountPoints;
+    MOUNTMGR_MOUNT_POINT    MountPoints[1];
+} MOUNTMGR_MOUNT_POINTS, * PMOUNTMGR_MOUNT_POINTS;
+
+//
+// Input structure for IOCTL_MOUNTMGR_KEEP_LINKS_WHEN_OFFLINE,
+// IOCTL_MOUNTMGR_VOLUME_ARRIVAL_NOTIFICATION,
+// IOCTL_MOUNTMGR_QUERY_DOS_VOLUME_PATH, and
+// IOCTL_MOUNTMGR_QUERY_DOS_VOLUME_PATHS.
+// IOCTL_MOUNTMGR_PREPARE_VOLUME_DELETE
+// IOCTL_MOUNTMGR_CANCEL_VOLUME_DELETE
+//
+
+typedef struct _MOUNTMGR_TARGET_NAME {
+    USHORT  DeviceNameLength;
+    WCHAR   DeviceName[1];
+} MOUNTMGR_TARGET_NAME, * PMOUNTMGR_TARGET_NAME;
+
+//
+// Macro that defines what a "drive letter" mount point is.  This macro can
+// be used to scan the result from QUERY_POINTS to discover which mount points
+// are find "drive letter" mount points.
+//
+
+#define MOUNTMGR_IS_DRIVE_LETTER(s) (   \
+    (s)->Length == 28 &&                \
+    (s)->Buffer[0] == '\\' &&           \
+    (s)->Buffer[1] == 'D' &&            \
+    (s)->Buffer[2] == 'o' &&            \
+    (s)->Buffer[3] == 's' &&            \
+    (s)->Buffer[4] == 'D' &&            \
+    (s)->Buffer[5] == 'e' &&            \
+    (s)->Buffer[6] == 'v' &&            \
+    (s)->Buffer[7] == 'i' &&            \
+    (s)->Buffer[8] == 'c' &&            \
+    (s)->Buffer[9] == 'e' &&            \
+    (s)->Buffer[10] == 's' &&           \
+    (s)->Buffer[11] == '\\' &&          \
+    (s)->Buffer[12] >= 'A' &&           \
+    (s)->Buffer[12] <= 'Z' &&           \
+    (s)->Buffer[13] == ':')
+
+#endif /* MOUNTMGR_H */
\ No newline at end of file