diff --git a/windows/syscall_windows.go b/windows/syscall_windows.go
index 008ffc1..3b6c5ae 100644
--- a/windows/syscall_windows.go
+++ b/windows/syscall_windows.go
@@ -174,6 +174,7 @@
 //sys	FormatMessage(flags uint32, msgsrc uintptr, msgid uint32, langid uint32, buf []uint16, args *byte) (n uint32, err error) = FormatMessageW
 //sys	ExitProcess(exitcode uint32)
 //sys	IsWow64Process(handle Handle, isWow64 *bool) (err error) = IsWow64Process
+//sys	IsWow64Process2(handle Handle, processMachine *uint16, nativeMachine *uint16) (err error) = IsWow64Process2?
 //sys	CreateFile(name *uint16, access uint32, mode uint32, sa *SecurityAttributes, createmode uint32, attrs uint32, templatefile Handle) (handle Handle, err error) [failretval==InvalidHandle] = CreateFileW
 //sys	ReadFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (err error)
 //sys	WriteFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (err error)
diff --git a/windows/syscall_windows_test.go b/windows/syscall_windows_test.go
index 2f1513f..cb03e1d 100644
--- a/windows/syscall_windows_test.go
+++ b/windows/syscall_windows_test.go
@@ -5,6 +5,8 @@
 package windows_test
 
 import (
+	"debug/pe"
+	"errors"
 	"fmt"
 	"io/ioutil"
 	"os"
@@ -458,3 +460,29 @@
 		t.Errorf("ProcessMemoryLimit is wrong: want %v have %v", wantMemLimit, have)
 	}
 }
+
+func TestIsWow64Process2(t *testing.T) {
+	var processMachine, nativeMachine uint16
+	err := windows.IsWow64Process2(windows.CurrentProcess(), &processMachine, &nativeMachine)
+	if errors.Is(err, windows.ERROR_PROC_NOT_FOUND) {
+		maj, min, build := windows.RtlGetNtVersionNumbers()
+		if maj < 10 || (maj == 10 && min == 0 && build < 17763) {
+			t.Skip("not available on older versions of Windows")
+			return
+		}
+	}
+	if err != nil {
+		t.Fatalf("IsWow64Process2 failed: %v", err)
+	}
+	if processMachine == pe.IMAGE_FILE_MACHINE_UNKNOWN {
+		processMachine = nativeMachine
+	}
+	switch {
+	case processMachine == pe.IMAGE_FILE_MACHINE_AMD64 && runtime.GOARCH == "amd64":
+	case processMachine == pe.IMAGE_FILE_MACHINE_I386 && runtime.GOARCH == "386":
+	case processMachine == pe.IMAGE_FILE_MACHINE_ARMNT && runtime.GOARCH == "arm":
+	case processMachine == pe.IMAGE_FILE_MACHINE_ARM64 && runtime.GOARCH == "arm64":
+	default:
+		t.Errorf("IsWow64Process2 is wrong: want %v have %v", runtime.GOARCH, processMachine)
+	}
+}
diff --git a/windows/zsyscall_windows.go b/windows/zsyscall_windows.go
index d400c35..cc5d74f 100644
--- a/windows/zsyscall_windows.go
+++ b/windows/zsyscall_windows.go
@@ -248,6 +248,7 @@
 	procGetVolumePathNamesForVolumeNameW                     = modkernel32.NewProc("GetVolumePathNamesForVolumeNameW")
 	procGetWindowsDirectoryW                                 = modkernel32.NewProc("GetWindowsDirectoryW")
 	procIsWow64Process                                       = modkernel32.NewProc("IsWow64Process")
+	procIsWow64Process2                                      = modkernel32.NewProc("IsWow64Process2")
 	procLoadLibraryExW                                       = modkernel32.NewProc("LoadLibraryExW")
 	procLoadLibraryW                                         = modkernel32.NewProc("LoadLibraryW")
 	procLocalFree                                            = modkernel32.NewProc("LocalFree")
@@ -2055,6 +2056,18 @@
 	return
 }
 
+func IsWow64Process2(handle Handle, processMachine *uint16, nativeMachine *uint16) (err error) {
+	err = procIsWow64Process2.Find()
+	if err != nil {
+		return
+	}
+	r1, _, e1 := syscall.Syscall(procIsWow64Process2.Addr(), 3, uintptr(handle), uintptr(unsafe.Pointer(processMachine)), uintptr(unsafe.Pointer(nativeMachine)))
+	if r1 == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
 func LoadLibraryEx(libname string, zero Handle, flags uintptr) (handle Handle, err error) {
 	var _p0 *uint16
 	_p0, err = syscall.UTF16PtrFromString(libname)