diff --git a/Library/OcAppleEventLib/AppleEventInternal.h b/Library/OcAppleEventLib/AppleEventInternal.h
index 7d013e23..b436e642 100644
--- a/Library/OcAppleEventLib/AppleEventInternal.h
+++ b/Library/OcAppleEventLib/AppleEventInternal.h
@@ -21,7 +21,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 
 #include <IndustryStandard/AppleHid.h>
 
-#include <Protocol/AppleEvent.h>
+#include <Protocol/OcAppleEventEx.h>
 
 // EventCreateKeyStrokePollEvent
 EFI_STATUS
@@ -161,4 +161,6 @@ InternalSetKeyDelays (
   IN  UINT16          KeySubsequentDelay
   );
 
+extern UINT32 mPointerScale;
+
 #endif // APPLE_EVENT_INTERNAL_H_
diff --git a/Library/OcAppleEventLib/OcAppleEventLib.c b/Library/OcAppleEventLib/OcAppleEventLib.c
index 397c3998..946e4c7f 100644
--- a/Library/OcAppleEventLib/OcAppleEventLib.c
+++ b/Library/OcAppleEventLib/OcAppleEventLib.c
@@ -509,14 +509,33 @@ InternalUnregisterHandlers (
   }
 }
 
+UINT32
+EFIAPI
+OcEventExSetPointerScale (
+  IN OUT OC_APPLE_EVENT_EX_PROTOCOL  *This,
+  IN     UINT32                      Scale
+  )
+{
+  UINT32 OldScale;
+
+  OldScale = mPointerScale;
+  mPointerScale = Scale;
+
+  return OldScale;
+}
+
 // mAppleEventProtocol
-STATIC APPLE_EVENT_PROTOCOL mAppleEventProtocol = {
-  APPLE_EVENT_PROTOCOL_REVISION,
-  EventRegisterHandler,
-  EventUnregisterHandler,
-  EventSetCursorPosition,
-  EventSetEventName,
-  EventIsCapsLockOn
+STATIC OC_APPLE_EVENT_EX_PROTOCOL mAppleEventProtocol = {
+  OC_APPLE_EVENT_EX_PROTOCOL_REVISION,
+  OcEventExSetPointerScale,
+  {
+    APPLE_EVENT_PROTOCOL_REVISION,
+    EventRegisterHandler,
+    EventUnregisterHandler,
+    EventSetCursorPosition,
+    EventSetEventName,
+    EventIsCapsLockOn
+  }
 };
 
 // AppleEventUnload
@@ -536,11 +555,13 @@ AppleEventUnload (
   InternalUnregisterHandlers ();
   InternalCancelPollEvents ();
 
-  Status = gBS->UninstallProtocolInterface (
-                  gImageHandle,
-                  &gAppleEventProtocolGuid,
-                  (VOID *)&mAppleEventProtocol
-                  );
+  Status = gBS->UninstallMultipleProtocolInterfaces (
+    gImageHandle,
+    &gAppleEventProtocolGuid,
+    (VOID *)&mAppleEventProtocol.AppleEvent,
+    &gOcAppleEventExProtocolGuid,
+    &mAppleEventProtocol
+    );
 
   return Status;
 }
@@ -565,7 +586,6 @@ OcAppleEventInstallProtocol (
 {
   EFI_STATUS           Status;
   APPLE_EVENT_PROTOCOL *Protocol;
-  EFI_HANDLE           NewHandle;
 
   DEBUG ((DEBUG_VERBOSE, "OcAppleEventInstallProtocol\n"));
 
@@ -590,16 +610,14 @@ OcAppleEventInstallProtocol (
 
   InternalSetKeyDelays (KeyInitialDelay, KeySubsequentDelay);
 
-  //
-  // Apple code supports unloading, ours does not.
-  //
-  NewHandle = NULL;
-  Status      = gBS->InstallProtocolInterface (
-                       &NewHandle,
-                       &gAppleEventProtocolGuid,
-                       EFI_NATIVE_INTERFACE,
-                       (VOID *)&mAppleEventProtocol
-                       );
+  Status = gBS->InstallMultipleProtocolInterfaces (
+    &gImageHandle,
+    &gAppleEventProtocolGuid,
+    &mAppleEventProtocol.AppleEvent,
+    &gOcAppleEventExProtocolGuid,
+    &mAppleEventProtocol,
+    NULL
+    );
 
   if (!EFI_ERROR (Status)) {
     InternalCreateQueueEvent ();
@@ -614,5 +632,5 @@ OcAppleEventInstallProtocol (
   }
 
   DEBUG ((DEBUG_INFO, "OCAE: Installed\n"));
-  return &mAppleEventProtocol;
+  return &mAppleEventProtocol.AppleEvent;
 }
diff --git a/Library/OcAppleEventLib/OcAppleEventLib.inf b/Library/OcAppleEventLib/OcAppleEventLib.inf
index 826cbea2..08df15f0 100644
--- a/Library/OcAppleEventLib/OcAppleEventLib.inf
+++ b/Library/OcAppleEventLib/OcAppleEventLib.inf
@@ -44,6 +44,7 @@
 
 [Protocols]
   gAppleEventProtocolGuid             ## SOMETIMES_PRODUCES
+  gOcAppleEventExProtocolGuid         ## SOMETIMES_PRODUCES
   gAppleKeyMapDatabaseProtocolGuid    ## SOMETIMES_CONSUMES
   gAppleKeyMapAggregatorProtocolGuid  ## SOMETIMES_CONSUMES
   gEfiConsoleControlProtocolGuid      ## SOMETIMES_CONSUMES
diff --git a/Library/OcAppleEventLib/PointerHandler.c b/Library/OcAppleEventLib/PointerHandler.c
index 75d19197..dfb768f0 100644
--- a/Library/OcAppleEventLib/PointerHandler.c
+++ b/Library/OcAppleEventLib/PointerHandler.c
@@ -46,6 +46,8 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #define POINTER_POLL_FREQUENCY  EFI_TIMER_PERIOD_MILLISECONDS (10)
 #define MAX_POINTER_POLL_FREQUENCY  EFI_TIMER_PERIOD_MILLISECONDS (80)
 
+GLOBAL_REMOVE_IF_UNREFERENCED UINT32 mPointerScale = 1;
+
 STATIC UINT16 mMaximumDoubleClickSpeed = 75; // 374 for 2 ms
 STATIC UINT16 mMaximumClickDuration    = 15;  // 74 for 2 ms
 
@@ -708,9 +710,11 @@ InternalSimplePointerPollNotifyFunction (
 
         UiScaleX = InternalGetUiScaleData ((INT64)State.RelativeMovementX);
         UiScaleX = MultS64x64 (UiScaleX, (INT64) mMaxPointerResolutionX);
+        UiScaleX = MultS64x64 (UiScaleX, mPointerScale);
 
         UiScaleY = InternalGetUiScaleData ((INT64)State.RelativeMovementY);
         UiScaleY = MultS64x64 (UiScaleY, (INT64) mMaxPointerResolutionY);
+        UiScaleY = MultS64x64 (UiScaleY, mPointerScale);
 
         if (SimplePointer->Mode->ResolutionX > 0) {
           UiScaleX = DivS64x64Remainder (