diff --git a/dll/win32/mpr/wnet.c b/dll/win32/mpr/wnet.c
index 27e72131a23..27ae289e7ba 100644
--- a/dll/win32/mpr/wnet.c
+++ b/dll/win32/mpr/wnet.c
@@ -30,8 +30,10 @@
 #include "npapi.h"
 #include "winreg.h"
 #include "winuser.h"
+#ifndef __REACTOS__
 #define WINE_MOUNTMGR_EXTENSIONS
 #include "ddk/mountmgr.h"
+#endif
 #include "wine/debug.h"
 #include "mprres.h"
 #include "wnetpriv.h"
diff --git a/drivers/storage/mountmgr/device.c b/drivers/storage/mountmgr/device.c
index ad70f80c23f..82a8854c9db 100644
--- a/drivers/storage/mountmgr/device.c
+++ b/drivers/storage/mountmgr/device.c
@@ -2793,9 +2793,6 @@ MountMgrDeviceControl(IN PDEVICE_OBJECT DeviceObject,
             Status = MountMgrSetAutoMount(DeviceExtension, Irp);
             break;
 
-        case IOCTL_MOUNTMGR_DEFINE_UNIX_DRIVE:
-        case IOCTL_MOUNTMGR_QUERY_UNIX_DRIVE:
-            DPRINT1("Winism! Rewrite the caller!\n");
         default:
             Status = STATUS_INVALID_DEVICE_REQUEST;
     }
diff --git a/sdk/include/ddk/mountmgr.h b/sdk/include/ddk/mountmgr.h
index a2fd77ea598..0826840e24c 100644
--- a/sdk/include/ddk/mountmgr.h
+++ b/sdk/include/ddk/mountmgr.h
@@ -42,17 +42,6 @@ extern "C" {
 DEFINE_GUID(MOUNTDEV_MOUNTED_DEVICE_GUID, 0x53F5630D, 0xB6BF, 0x11D0, 0x94, 0xF2, 0x00, 0xA0, 0xC9, 0x1E, 0xFB, 0x8B);
 #endif
 
-#define IOCTL_MOUNTMGR_DEFINE_UNIX_DRIVE CTL_CODE(MOUNTMGRCONTROLTYPE, 32, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
-#define IOCTL_MOUNTMGR_QUERY_UNIX_DRIVE  CTL_CODE(MOUNTMGRCONTROLTYPE, 33, METHOD_BUFFERED, FILE_READ_ACCESS)
-
-struct mountmgr_unix_drive {
-  ULONG size;
-  ULONG type;
-  WCHAR letter;
-  USHORT mount_point_offset;
-  USHORT device_offset;
-};
-
 #define IOCTL_MOUNTMGR_CREATE_POINT \
   CTL_CODE(MOUNTMGRCONTROLTYPE, 0, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
 #define IOCTL_MOUNTMGR_DELETE_POINTS \