diff --git a/patches/ntdll-NtCreateThreadEx/0001-ntdll-Implement-NtCreateThreadEx.patch b/patches/ntdll-NtCreateThreadEx/0001-ntdll-Implement-NtCreateThreadEx.patch
new file mode 100644
index 00000000..b791a254
--- /dev/null
+++ b/patches/ntdll-NtCreateThreadEx/0001-ntdll-Implement-NtCreateThreadEx.patch
@@ -0,0 +1,73 @@
+From 45e90a8373a297509f21789aaf817f455e749975 Mon Sep 17 00:00:00 2001
+From: Andrew Wesie <awesie@gmail.com>
+Date: Sat, 12 Nov 2016 08:37:23 -0600
+Subject: ntdll: Implement NtCreateThreadEx.
+
+Signed-off-by: Andrew Wesie <awesie@gmail.com>
+---
+ dlls/ntdll/ntdll.spec |  1 +
+ dlls/ntdll/thread.c   | 17 +++++++++++++++++
+ include/winternl.h    |  7 +++++++
+ 3 files changed, 25 insertions(+)
+
+diff --git a/dlls/ntdll/ntdll.spec b/dlls/ntdll/ntdll.spec
+index 3c50e20a8b3..b6987830688 100644
+--- a/dlls/ntdll/ntdll.spec
++++ b/dlls/ntdll/ntdll.spec
+@@ -151,6 +151,7 @@
+ @ stdcall NtCreateSemaphore(ptr long ptr long long)
+ @ stdcall NtCreateSymbolicLinkObject(ptr long ptr ptr)
+ @ stub NtCreateThread
++@ stdcall NtCreateThreadEx(ptr long ptr long ptr ptr long long long long ptr)
+ @ stdcall NtCreateTimer(ptr long ptr long)
+ @ stub NtCreateToken
+ # @ stub NtCreateWaitablePort
+diff --git a/dlls/ntdll/thread.c b/dlls/ntdll/thread.c
+index 5d45ebe0fd0..8da0779f4b2 100644
+--- a/dlls/ntdll/thread.c
++++ b/dlls/ntdll/thread.c
+@@ -599,6 +599,23 @@ static void start_thread( struct startup_info *info )
+ 
+ 
+ /***********************************************************************
++ *              NtCreateThreadEx   (NTDLL.@)
++ */
++NTSTATUS WINAPI NtCreateThreadEx( HANDLE *handle_ptr, ACCESS_MASK access, OBJECT_ATTRIBUTES *attr,
++                                  HANDLE process, LPTHREAD_START_ROUTINE start, void *param,
++                                  ULONG flags, ULONG zero_bits, ULONG stack_commit,
++                                  ULONG stack_reserve, void *attribute_list )
++{
++    FIXME( "%p, %x, %p, %p, %p, %p, %x, %x, %x, %x, %p semi-stub!\n", handle_ptr, access, attr,
++           process, start, param, flags, zero_bits, stack_commit, stack_reserve, attribute_list );
++
++    return RtlCreateUserThread( process, NULL, flags & THREAD_CREATE_FLAGS_CREATE_SUSPENDED,
++                                NULL, stack_reserve, stack_commit, (PRTL_THREAD_START_ROUTINE)start,
++                                param, handle_ptr, NULL );
++}
++
++
++/***********************************************************************
+  *              RtlCreateUserThread   (NTDLL.@)
+  */
+ NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *descr,
+diff --git a/include/winternl.h b/include/winternl.h
+index d6f47ad3ba4..2878487c4bc 100644
+--- a/include/winternl.h
++++ b/include/winternl.h
+@@ -2224,6 +2224,13 @@ typedef struct _SYSTEM_MODULE_INFORMATION
+     SYSTEM_MODULE       Modules[1]; /* FIXME: should be Modules[0] */
+ } SYSTEM_MODULE_INFORMATION, *PSYSTEM_MODULE_INFORMATION;
+ 
++#define THREAD_CREATE_FLAGS_CREATE_SUSPENDED        0x00000001
++#define THREAD_CREATE_FLAGS_SKIP_THREAD_ATTACH      0x00000002
++#define THREAD_CREATE_FLAGS_HIDE_FROM_DEBUGGER      0x00000004
++#define THREAD_CREATE_FLAGS_HAS_SECURITY_DESCRIPTOR 0x00000010
++#define THREAD_CREATE_FLAGS_ACCESS_CHECK_IN_TARGET  0x00000020
++#define THREAD_CREATE_FLAGS_INITIAL_THREAD          0x00000080
++
+ /***********************************************************************
+  * Function declarations
+  */
+-- 
+2.12.2
+
diff --git a/patches/ntdll-NtCreateThreadEx/definition b/patches/ntdll-NtCreateThreadEx/definition
new file mode 100644
index 00000000..feda3e49
--- /dev/null
+++ b/patches/ntdll-NtCreateThreadEx/definition
@@ -0,0 +1 @@
+Fixes: Implement semi-stub for ntdll.NtCreateThreadEx
diff --git a/patches/patchinstall.sh b/patches/patchinstall.sh
index fa3ccbc8..d91089e2 100755
--- a/patches/patchinstall.sh
+++ b/patches/patchinstall.sh
@@ -240,6 +240,7 @@ patch_enable_all ()
 	enable_ntdll_Loader_Machine_Type="$1"
 	enable_ntdll_NtAccessCheck="$1"
 	enable_ntdll_NtAllocateUuids="$1"
+	enable_ntdll_NtCreateThreadEx="$1"
 	enable_ntdll_NtQueryEaFile="$1"
 	enable_ntdll_NtQuerySection="$1"
 	enable_ntdll_NtQueryVirtualMemory="$1"
@@ -946,6 +947,9 @@ patch_enable ()
 		ntdll-NtAllocateUuids)
 			enable_ntdll_NtAllocateUuids="$2"
 			;;
+		ntdll-NtCreateThreadEx)
+			enable_ntdll_NtCreateThreadEx="$2"
+			;;
 		ntdll-NtQueryEaFile)
 			enable_ntdll_NtQueryEaFile="$2"
 			;;
@@ -5532,6 +5536,18 @@ if test "$enable_ntdll_NtAllocateUuids" -eq 1; then
 	) >> "$patchlist"
 fi
 
+# Patchset ntdll-NtCreateThreadEx
+# |
+# | Modified files:
+# |   *	dlls/ntdll/ntdll.spec, dlls/ntdll/thread.c, include/winternl.h
+# |
+if test "$enable_ntdll_NtCreateThreadEx" -eq 1; then
+	patch_apply ntdll-NtCreateThreadEx/0001-ntdll-Implement-NtCreateThreadEx.patch
+	(
+		printf '%s\n' '+    { "Andrew Wesie", "ntdll: Implement NtCreateThreadEx.", 1 },';
+	) >> "$patchlist"
+fi
+
 # Patchset ntdll-NtQuerySection
 # |
 # | Modified files: