diff --git a/reactos/ntoskrnl/include/internal/io.h b/reactos/ntoskrnl/include/internal/io.h
index f6f3c09c5db..d9a070ce36a 100644
--- a/reactos/ntoskrnl/include/internal/io.h
+++ b/reactos/ntoskrnl/include/internal/io.h
@@ -1,4 +1,4 @@
-/* $Id: io.h,v 1.1 2000/06/29 23:35:36 dwelch Exp $
+/* $Id: io.h,v 1.2 2000/07/07 02:09:51 ekohl Exp $
  *
  * COPYRIGHT:       See COPYING in the top level directory
  * PROJECT:         ReactOS kernel
@@ -30,6 +30,7 @@ NTSTATUS IoInitializeDriver(PDRIVER_INITIALIZE DriverEntry);
 VOID IoInitCancelHandling(VOID);
 VOID IoInitSymbolicLinkImplementation(VOID);
 VOID IoInitFileSystemImplementation(VOID);
+VOID IoInitVpbImplementation (VOID);
 
 NTSTATUS IoTryToMountStorageDevice(PDEVICE_OBJECT DeviceObject);
 POBJECT IoOpenSymlink(POBJECT SymbolicLink);
diff --git a/reactos/ntoskrnl/io/iomgr.c b/reactos/ntoskrnl/io/iomgr.c
index ea6829435be..2279cc954d4 100644
--- a/reactos/ntoskrnl/io/iomgr.c
+++ b/reactos/ntoskrnl/io/iomgr.c
@@ -1,4 +1,4 @@
-/* $Id: iomgr.c,v 1.12 2000/06/29 23:35:37 dwelch Exp $
+/* $Id: iomgr.c,v 1.13 2000/07/07 02:10:18 ekohl Exp $
  *
  * COPYRIGHT:            See COPYING in the top level directory
  * PROJECT:              ReactOS kernel
@@ -235,6 +235,7 @@ VOID IoInit (VOID)
 	IoInitCancelHandling ();
 	IoInitSymbolicLinkImplementation ();
 	IoInitFileSystemImplementation ();
+	IoInitVpbImplementation ();
 
 	/*
 	 * Create link from \DosDevices to \?? directory
diff --git a/reactos/ntoskrnl/io/vpb.c b/reactos/ntoskrnl/io/vpb.c
index 108e10b83e9..6c9e668743a 100644
--- a/reactos/ntoskrnl/io/vpb.c
+++ b/reactos/ntoskrnl/io/vpb.c
@@ -1,4 +1,4 @@
-/* $Id: vpb.c,v 1.9 2000/03/26 19:38:26 ea Exp $
+/* $Id: vpb.c,v 1.10 2000/07/07 02:10:50 ekohl Exp $
  *
  * COPYRIGHT:       See COPYING in the top level directory
  * PROJECT:         ReactOS kernel
@@ -12,15 +12,25 @@
 /* INCLUDES *****************************************************************/
 
 #include <ddk/ntddk.h>
-#include <string.h>
-#include <internal/string.h>
-#include <internal/ob.h>
+#include <internal/io.h>
 
 #define NDEBUG
 #include <internal/debug.h>
 
+/* GLOBALS *******************************************************************/
+
+static KSPIN_LOCK IoVpbLock;
+
 /* FUNCTIONS *****************************************************************/
 
+VOID
+IoInitVpbImplementation (
+	VOID
+	)
+{
+	KeInitializeSpinLock(&IoVpbLock);
+}
+
 NTSTATUS IoAttachVpb(PDEVICE_OBJECT DeviceObject)
 {
    PVPB Vpb;
@@ -235,10 +245,11 @@ NtSetVolumeInformationFile (
 VOID
 STDCALL
 IoAcquireVpbSpinLock (
-	PKIRQL	Irpl
+	OUT	PKIRQL	Irql
 	)
 {
-	UNIMPLEMENTED;
+	KeAcquireSpinLock (&IoVpbLock,
+	                   Irql);
 }
 
 
@@ -248,7 +259,8 @@ IoReleaseVpbSpinLock (
 	IN	KIRQL	Irql
 	)
 {
-	UNIMPLEMENTED;
+	KeReleaseSpinLock (&IoVpbLock,
+	                   Irql);
 }