diff --git a/repos/ports/ports/virtualbox.hash b/repos/ports/ports/virtualbox.hash
index 1dbc9fae6c..c4109f8250 100644
--- a/repos/ports/ports/virtualbox.hash
+++ b/repos/ports/ports/virtualbox.hash
@@ -1 +1 @@
-91cce27022768a9213a803ed6530319cc1228fb0
+d2beb20e61ac2fa809c41a656e4b2c3c71ead4f6
diff --git a/repos/ports/ports/virtualbox.port b/repos/ports/ports/virtualbox.port
index 1199d216cd..eb6d39344a 100644
--- a/repos/ports/ports/virtualbox.port
+++ b/repos/ports/ports/virtualbox.port
@@ -13,8 +13,10 @@ URL(virtualbox_sdk) := http://download.virtualbox.org/virtualbox/$(VERSION)/$(VI
 DIR(virtualbox_sdk) := src/app/virtualbox_sdk
 SHA(virtualbox_sdk) := 8f95a891a6cb5f712fcb0ed34f2b8bf6b1e59f4c
 
-PATCHES_DIR := src/virtualbox/patches
+PATCHES_DIR       := src/virtualbox/patches
+PATCHES_DIR_VBOX4 := src/virtualbox/patches
 PATCHES := $(addprefix $(PATCHES_DIR)/, $(shell cat $(REP_DIR)/$(PATCHES_DIR)/series))
+PATCHES += $(addprefix $(PATCHES_DIR_VBOX4)/, $(shell cat $(REP_DIR)/$(PATCHES_DIR_VBOX4)/series_common))
 PATCH_OPT := -p1
 
 $(call check_tool,xsltproc)
diff --git a/repos/ports/src/virtualbox/include/VBox/com/defs.h b/repos/ports/src/virtualbox/include/VBox/com/defs.h
index f969325433..8cce7b58e4 100644
--- a/repos/ports/src/virtualbox/include/VBox/com/defs.h
+++ b/repos/ports/src/virtualbox/include/VBox/com/defs.h
@@ -14,6 +14,7 @@
 #define BEGIN_COM_MAP(X)
 #define COM_INTERFACE_ENTRY(X)
 #define COM_INTERFACE_ENTRY2(X,Y)
+#define COM_INTERFACE_ENTRY_AGGREGATE(X, Y)
 #define END_COM_MAP()
 
 #define HRESULT nsresult
diff --git a/repos/ports/src/virtualbox/include/VBox/com/ptr.h b/repos/ports/src/virtualbox/include/VBox/com/ptr.h
index 939f434a0d..758ff8df1c 100644
--- a/repos/ports/src/virtualbox/include/VBox/com/ptr.h
+++ b/repos/ports/src/virtualbox/include/VBox/com/ptr.h
@@ -60,6 +60,7 @@ class ComPtr {
 		}
 
 		bool isNull () const    { return _obj == nullptr; }
+		bool isNotNull() const  { return _obj != nullptr; }
 
 		T ** asOutParam() { return &_obj; }
 
diff --git a/repos/ports/src/virtualbox/include/xpcom/nsISupportsImpl.h b/repos/ports/src/virtualbox/include/xpcom/nsISupportsImpl.h
index 9a7fa09d1f..6c54a0dcf8 100644
--- a/repos/ports/src/virtualbox/include/xpcom/nsISupportsImpl.h
+++ b/repos/ports/src/virtualbox/include/xpcom/nsISupportsImpl.h
@@ -8,7 +8,15 @@
 #define NS_DECL_CLASSINFO(x)
 #define NS_IMPL_THREADSAFE_ADDREF(x)
 #define NS_IMPL_THREADSAFE_RELEASE(x)
-#define NS_IMPL_QUERY_INTERFACE1_CI(x, y)
-#define NS_IMPL_CI_INTERFACE_GETTER1(x, y)
+#define NS_IMPL_QUERY_INTERFACE1_CI(a, b)
+#define NS_IMPL_QUERY_INTERFACE2_CI(a, b, c)
+#define NS_IMPL_QUERY_INTERFACE3_CI(a, b, c, d)
+#define NS_IMPL_QUERY_INTERFACE4_CI(a, b, c, d, e)
+#define NS_IMPL_QUERY_INTERFACE5_CI(a, b, c, d, e, f)
+#define NS_IMPL_CI_INTERFACE_GETTER1(a, b)
+#define NS_IMPL_CI_INTERFACE_GETTER2(a, b, c)
+#define NS_IMPL_CI_INTERFACE_GETTER3(a, b, c, d)
+#define NS_IMPL_CI_INTERFACE_GETTER4(a, b, c, d, e)
+#define NS_IMPL_CI_INTERFACE_GETTER5(a, b, c, d, e, f)
 
 #endif
diff --git a/repos/ports/src/virtualbox/patches/series b/repos/ports/src/virtualbox/patches/series
index 601556490d..f2ac146427 100644
--- a/repos/ports/src/virtualbox/patches/series
+++ b/repos/ports/src/virtualbox/patches/series
@@ -1,28 +1,11 @@
-acpi_drv.patch
 audio.patch
-dev_e1000.patch
-eminternal.patch
-iconv.patch
-mouse.patch
-pdm_driver.patch
-poke.patch
-sharedfolder_pagelist.patch
-time-log-deadlock.patch
-tm_retries.patch
+ide.patch
 vbox_inc.patch
 vbox_main.patch
-network.patch
 vga_fb.patch
 vga_vbva.patch
-vmdk.patch
 vmmdev.patch
-avoid_yield.patch
-serial.patch
-rem_irq.patch
 usb.patch
 tm_smp.patch
-posix.patch
-hostservice.patch
 vbox_dd.patch
-ide.patch
 force_ioapic.patch
diff --git a/repos/ports/src/virtualbox/patches/series_common b/repos/ports/src/virtualbox/patches/series_common
new file mode 100644
index 0000000000..8f4a7e108e
--- /dev/null
+++ b/repos/ports/src/virtualbox/patches/series_common
@@ -0,0 +1,17 @@
+acpi_drv.patch
+avoid_yield.patch
+dev_e1000.patch
+eminternal.patch
+hostservice.patch
+iconv.patch
+mouse.patch
+network.patch
+pdm_driver.patch
+poke.patch
+posix.patch
+rem_irq.patch
+serial.patch
+sharedfolder_pagelist.patch
+time-log-deadlock.patch
+tm_retries.patch
+vmdk.patch
diff --git a/repos/ports/src/virtualbox/rt.cc b/repos/ports/src/virtualbox/rt.cc
index b62e3985bd..eacbccebd9 100644
--- a/repos/ports/src/virtualbox/rt.cc
+++ b/repos/ports/src/virtualbox/rt.cc
@@ -234,6 +234,10 @@ static void *alloc_mem(size_t cb, const char *pszTag, bool executable = false)
 	}
 }
 
+#ifndef RT_NO_THROW
+	/* not defined in vbox5, but this code is used by vbox4 and vbox5 */
+	#define RT_NO_THROW
+#endif
 
 /*
  * Called by the recompiler to allocate executable RAM