diff --git a/common_windows.go b/common_windows.go
index f9289cb..65f8451 100644
--- a/common_windows.go
+++ b/common_windows.go
@@ -20,12 +20,6 @@ type _HWND _HANDLE
 type _HBRUSH _HANDLE
 type _HMENU _HANDLE
 
-const (
-	_NULL = 0
-	_FALSE = 0		// from windef.h
-	_TRUE = 1			// from windef.h
-)
-
 // In MSDN, _LPARAM and _LRESULT are listed as signed pointers, however their interpretation is message-specific. Ergo, just cast them yourself; it'll be the same. (Thanks to Tv` in #go-nuts for helping me realize this.)
 type _WPARAM uintptr
 type _LPARAM uintptr
@@ -45,11 +39,6 @@ func _LPARAMFromString(str string) _LPARAM {
 	return _LPARAM(unsafe.Pointer(syscall.StringToUTF16Ptr(str)))
 }
 
-// microsoft's header files do this
-func _MAKEINTRESOURCE(what uint16) uintptr {
-	return uintptr(what)
-}
-
 func (l _LPARAM) X() int32 {
 	// according to windowsx.h
 	loword := uint16(l & 0xFFFF)
@@ -81,37 +70,3 @@ type _RECT struct {
 func negConst(c int) uintptr {
 	return uintptr(c)
 }
-
-// Predefined cursor resource IDs.
-const (
-	_IDC_APPSTARTING = 32650
-	_IDC_ARROW = 32512
-	_IDC_CROSS = 32515
-	_IDC_HAND = 32649
-	_IDC_HELP = 32651
-	_IDC_IBEAM = 32513
-//	_IDC_ICON = 32641		// [Obsolete for applications marked version 4.0 or later.]
-	_IDC_NO = 32648
-//	_IDC_SIZE = 32640		// [Obsolete for applications marked version 4.0 or later. Use IDC_SIZEALL.]
-	_IDC_SIZEALL = 32646
-	_IDC_SIZENESW = 32643
-	_IDC_SIZENS = 32645
-	_IDC_SIZENWSE = 32642
-	_IDC_SIZEWE = 32644
-	_IDC_UPARROW = 32516
-	_IDC_WAIT = 32514
-)
-
-// Predefined icon resource IDs.
-const (
-	_IDI_APPLICATION = 32512
-	_IDI_ASTERISK = 32516
-	_IDI_ERROR = 32513
-	_IDI_EXCLAMATION = 32515
-	_IDI_HAND = 32513
-	_IDI_INFORMATION = 32516
-	_IDI_QUESTION = 32514
-	_IDI_SHIELD = 32518
-	_IDI_WARNING = 32515
-	_IDI_WINLOGO = 32517
-)
diff --git a/experiments/windowsconstgen.go b/experiments/windowsconstgen.go
index b2b87ee..d840a1a 100644
--- a/experiments/windowsconstgen.go
+++ b/experiments/windowsconstgen.go
@@ -73,9 +73,13 @@ func gatherNames(pkg *ast.Package) {
 }
 
 // some constants confuse cgo into thinking they're external symbols for some reason
+// fortunately all these constants are pointers
 // TODO debug cgo
 var hacknames = map[string]string{
 	"_INVALID_HANDLE_VALUE":		"x_INVALID_HANDLE_VALUE",
+	"_NULL":						"x_NULL",
+	"_IDI_APPLICATION":			"x_IDI_APPLICATION",
+	"_IDC_ARROW":				"x_IDC_ARROW",
 }
 
 func hacknamesPreamble() string {
diff --git a/stdwndclass_windows.go b/stdwndclass_windows.go
index c2f5079..276e698 100644
--- a/stdwndclass_windows.go
+++ b/stdwndclass_windows.go
@@ -123,10 +123,11 @@ func registerStdWndClass(s *sysData) (newClassName string, err error) {
 	return newClassName, nil
 }
 
+// no need to use/recreate MAKEINTRESOURCE() here as the Windows constant generator already took care of that because Microsoft's headers do already
 func initWndClassInfo() (err error) {
 	r1, _, err := user32.NewProc("LoadIconW").Call(
 		uintptr(_NULL),
-		_MAKEINTRESOURCE(_IDI_APPLICATION))
+		uintptr(_IDI_APPLICATION))
 	if r1 == 0 {		// failure
 		return fmt.Errorf("error getting window icon: %v", err)
 	}
@@ -134,7 +135,7 @@ func initWndClassInfo() (err error) {
 
 	r1, _, err = user32.NewProc("LoadCursorW").Call(
 		uintptr(_NULL),
-		_MAKEINTRESOURCE(_IDC_ARROW))
+		uintptr(_IDC_ARROW))
 	if r1 == 0 {		// failure
 		return fmt.Errorf("error getting window cursor: %v", err)
 	}
diff --git a/zconstants_windows_386.go b/zconstants_windows_386.go
index fcbdce0..33d2998 100644
--- a/zconstants_windows_386.go
+++ b/zconstants_windows_386.go
@@ -27,6 +27,7 @@ const _DIB_RGB_COLORS = 0
 const _ERROR = 0
 const _ES_AUTOHSCROLL = 128
 const _ES_PASSWORD = 32
+const _FALSE = 0
 const _GWL_STYLE = -16
 const _ICC_PROGRESS_CLASS = 32
 const _LBS_EXTENDEDSEL = 2048
@@ -79,6 +80,7 @@ const _SW_HIDE = 0
 const _SW_INVALIDATE = 2
 const _SW_SHOW = 5
 const _SW_SHOWDEFAULT = 10
+const _TRUE = 1
 const _VK_ADD = 107
 const _VK_CONTROL = 17
 const _VK_DELETE = 46
@@ -144,4 +146,7 @@ const _WS_OVERLAPPEDWINDOW = 13565952
 const _WS_TABSTOP = 65536
 const _WS_VISIBLE = 268435456
 const _WS_VSCROLL = 2097152
+const _IDC_ARROW = 32512
+const _IDI_APPLICATION = 32512
 const _INVALID_HANDLE_VALUE = 4294967295
+const _NULL = 0