diff --git a/base/applications/drwtsn32/main.cpp b/base/applications/drwtsn32/main.cpp
index 277542153f2..683e1420a6d 100644
--- a/base/applications/drwtsn32/main.cpp
+++ b/base/applications/drwtsn32/main.cpp
@@ -71,6 +71,17 @@ static void PrintThread(FILE* output, DumpData& data, DWORD tid, ThreadData& thr
                  ctx.R0, ctx.R1, ctx.R2, ctx.R3, ctx.R4, ctx.R5, ctx.R6);
         xfprintf(output, "r7:%p r8:%p r9:%p r10:%p r11:%p r12:%p" NEWLINE,
                  ctx.R7, ctx.R8, ctx.R9, ctx.R10, ctx.R11, ctx.R12);
+#elif defined(_M_ARM64)
+        xfprintf(output, "x0:%p x1:%p x2:%p x3:%p x4:%p x5:%p x6:%p" NEWLINE,
+                 ctx.X0, ctx.X1, ctx.X2, ctx.X3, ctx.X4, ctx.X5, ctx.X6);
+        xfprintf(output, "x7:%p x8:%p x9:%p x10:%p x11:%p x12:%p" NEWLINE,
+                 ctx.X7, ctx.X8, ctx.X9, ctx.X10, ctx.X11, ctx.X12);
+        xfprintf(output, "x13:%p x14:%p x15:%p x16:%p x17:%p x18:%p" NEWLINE,
+                 ctx.X13, ctx.X14, ctx.X15, ctx.X16, ctx.X17, ctx.X18);
+        xfprintf(output, "x19:%p x20:%p x21:%p x22:%p x23:%p x24:%p" NEWLINE,
+                 ctx.X19, ctx.X20, ctx.X21, ctx.X22, ctx.X23, ctx.X24);
+        xfprintf(output, "x25:%p x26:%p x27:%p x28:%p" NEWLINE,
+                 ctx.X25, ctx.X26, ctx.X27, ctx.X28);
 #else
 #error Unknown architecture
 #endif
@@ -87,6 +98,9 @@ static void PrintThread(FILE* output, DumpData& data, DWORD tid, ThreadData& thr
 #elif defined(_M_ARM)
         xfprintf(output, "sp:%p lr:%p pc:%p cpsr:%p" NEWLINE,
                  ctx.Sp, ctx.Lr, ctx.Pc, ctx.Cpsr);
+#elif defined(_M_ARM64)
+        xfprintf(output, "sp:%p pc:%p fpcr:%p fpsr:%p" NEWLINE,
+                 ctx.Sp, ctx.Pc, ctx.Fpcr, ctx.Fpsr);
 #else
 #error Unknown architecture
 #endif
@@ -107,6 +121,16 @@ static void PrintThread(FILE* output, DumpData& data, DWORD tid, ThreadData& thr
             xfprintf(output, "Wvr%d:%p%s", n, ctx.Wvr[n], ((n + 1) == ARM_MAX_WATCHPOINTS) ? NEWLINE : " ");
         for (int n = 0; n < ARM_MAX_WATCHPOINTS; ++n)
             xfprintf(output, "Wcr%d:%p%s", n, ctx.Wcr[n], ((n + 1) == ARM_MAX_WATCHPOINTS) ? NEWLINE : " ");
+#elif defined(_M_ARM64)
+        for (int n = 0; n < ARM64_MAX_BREAKPOINTS; ++n)
+            xfprintf(output, "Bvr%d:%p%s", n, ctx.Bvr[n], ((n + 1) == ARM64_MAX_BREAKPOINTS) ? NEWLINE : " ");
+        for (int n = 0; n < ARM64_MAX_BREAKPOINTS; ++n)
+            xfprintf(output, "Bcr%d:%p%s", n, ctx.Bcr[n], ((n + 1) == ARM64_MAX_BREAKPOINTS) ? NEWLINE : " ");
+
+        for (int n = 0; n < ARM64_MAX_WATCHPOINTS; ++n)
+            xfprintf(output, "Wvr%d:%p%s", n, ctx.Wvr[n], ((n + 1) == ARM64_MAX_WATCHPOINTS) ? NEWLINE : " ");
+        for (int n = 0; n < ARM64_MAX_WATCHPOINTS; ++n)
+            xfprintf(output, "Wcr%d:%p%s", n, ctx.Wcr[n], ((n + 1) == ARM64_MAX_WATCHPOINTS) ? NEWLINE : " ");
 #else
 #error Unknown architecture
 #endif
diff --git a/base/applications/drwtsn32/stacktrace.cpp b/base/applications/drwtsn32/stacktrace.cpp
index 4742349117b..3900a7e5f1f 100644
--- a/base/applications/drwtsn32/stacktrace.cpp
+++ b/base/applications/drwtsn32/stacktrace.cpp
@@ -64,7 +64,7 @@ void PrintStackBacktrace(FILE* output, DumpData& data, ThreadData& thread)
     MachineType = IMAGE_FILE_MACHINE_ARM64;
     StackFrame.AddrPC.Offset = thread.Context.Pc;
     StackFrame.AddrStack.Offset = thread.Context.Sp;
-    StackFrame.AddrFrame.Offset = thread.Context.u.s.Fp;
+    StackFrame.AddrFrame.Offset = thread.Context.Fp;
 #else
 #error "Unknown architecture"
 #endif
diff --git a/dll/win32/msvcrt/msvcrt.spec b/dll/win32/msvcrt/msvcrt.spec
index 9f2c5a55eb6..3087dc38ed2 100644
--- a/dll/win32/msvcrt/msvcrt.spec
+++ b/dll/win32/msvcrt/msvcrt.spec
@@ -230,7 +230,7 @@
 @ extern _HUGE
 @ cdecl _Strftime(str long str ptr ptr)
 @ cdecl _XcptFilter(long ptr)
-@ stdcall -arch=x86_64,arm __C_specific_handler(ptr long ptr ptr)
+@ stdcall -arch=x86_64,arm,arm64 __C_specific_handler(ptr long ptr ptr)
 @ cdecl __CppXcptFilter(long ptr)
 @ stub -version=0x600+ -arch=i386 __CxxCallUnwindDelDtor
 @ stub -arch=i386 __CxxCallUnwindDtor
@@ -240,7 +240,7 @@
 @ cdecl -arch=i386,x86_64 -norelay __CxxFrameHandler(ptr ptr ptr ptr)
 @ cdecl -arch=i386 -norelay __CxxFrameHandler2(ptr ptr ptr ptr) __CxxFrameHandler
 @ cdecl -version=0x600+ -arch=x86_64 -norelay __CxxFrameHandler2(ptr ptr ptr ptr) __CxxFrameHandler
-@ cdecl -arch=arm -norelay __CxxFrameHandler3(ptr ptr ptr ptr)
+@ cdecl -arch=arm,arm64 -norelay __CxxFrameHandler3(ptr ptr ptr ptr)
 @ cdecl -version=0x600+ -arch=i386 -norelay __CxxFrameHandler3(ptr ptr ptr ptr)
 @ cdecl -version=0x600+ -arch=x86_64 -norelay __CxxFrameHandler3(ptr ptr ptr ptr) __CxxFrameHandler
 @ stdcall -arch=i386 __CxxLongjmpUnwind(ptr)
diff --git a/sdk/lib/atl/atlwin.h b/sdk/lib/atl/atlwin.h
index 19d438523cc..fe1fe3657df 100644
--- a/sdk/lib/atl/atlwin.h
+++ b/sdk/lib/atl/atlwin.h
@@ -224,6 +224,27 @@ struct thunkCode
     }
 };
 #pragma pack(pop)
+#elif defined(_M_ARM64)
+
+#pragma pack(push,4)
+struct thunkCode
+{
+    DWORD64 m_mov_x0; /* mov r0, m_this */
+    DWORD64 m_mov_pc; /* mov pc, m_proc */
+    DWORD64 m_this;
+    DWORD64 m_proc;
+
+    void
+    Init(WNDPROC proc, void *pThis)
+    {
+        m_mov_x0 = 0xE59F0000;
+        m_mov_pc = 0xE59FF000;
+        m_this = (DWORD64)pThis;
+        m_proc = (DWORD64)proc;
+        FlushInstructionCache(GetCurrentProcess(), this, sizeof(thunkCode));
+    }
+};
+#pragma pack(pop)
 
 #else
 #error ARCH not supported
diff --git a/sdk/lib/crt/oldnames-msvcrt.S b/sdk/lib/crt/oldnames-msvcrt.S
index 58d2f6e9491..8c3345d5fa6 100644
--- a/sdk/lib/crt/oldnames-msvcrt.S
+++ b/sdk/lib/crt/oldnames-msvcrt.S
@@ -47,7 +47,24 @@ ENDM
     CREATE_ALIAS2   $alias, $target
     IMPORT  IMPSYM($alias), WEAK IMPSYM($target)
     MEND
+    MACRO
+    CREATE_ALIAS   $alias, $target
+    CREATE_ALIAS1 $alias, $target
+    CREATE_ALIAS2 $alias, $target
+    MEND
 
+#elif defined(_M_ARM64)
+
+#include <kxarm64.h>
+    MACRO
+    CREATE_ALIAS1   $alias, $target
+    IMPORT  SYM($alias), WEAK SYM($target)
+    MEND
+
+    MACRO
+    CREATE_ALIAS2   $alias, $target
+    IMPORT  IMPSYM($alias), WEAK IMPSYM($target)
+    MEND
     MACRO
     CREATE_ALIAS   $alias, $target
     CREATE_ALIAS1 $alias, $target