diff --git a/reactos/include/psdk/basetsd.h b/reactos/include/psdk/basetsd.h
index 348d156bb30..62b9e9943e4 100644
--- a/reactos/include/psdk/basetsd.h
+++ b/reactos/include/psdk/basetsd.h
@@ -142,9 +142,6 @@ typedef __int64 INT_PTR, *PINT_PTR;
 typedef unsigned __int64 UINT_PTR, *PUINT_PTR;
 typedef __int64 LONG_PTR, *PLONG_PTR;
 typedef unsigned __int64 ULONG_PTR, *PULONG_PTR;
-typedef unsigned __int64 HANDLE_PTR;
-typedef unsigned int UHALF_PTR, *PUHALF_PTR;
-typedef int HALF_PTR, *PHALF_PTR;
 
 #if !defined(__midl) && !defined(__WIDL__)
 static inline unsigned long HandleToUlong(const void* h )