diff --git a/cryptest.nmake b/cryptest.nmake
index afa2e5f4..58c71e71 100644
--- a/cryptest.nmake
+++ b/cryptest.nmake
@@ -82,6 +82,7 @@ PLATFORM = x64
 !MESSAGE
 
 !IF "$(PLATFORM)" == "x86" || "$(PLATFORM)" == "X86"
+# CXXFLAGS = $(CXXFLAGS) /arch:SSE2
 # CXXFLAGS = $(CXXFLAGS) /DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP
 # CXXFLAGS = $(CXXFLAGS) /DWINAPI_FAMILY=WINAPI_FAMILY_APP
 AS = ml.exe
@@ -93,6 +94,7 @@ LDLIBS = $(LDLIBS) ws2_32.lib kernel32.lib
 
 # May need $(VCINSTALLDIR)\bin\amd64\ml64.exe
 !IF "$(PLATFORM)" == "x64" || "$(PLATFORM)" == "X64"
+# CXXFLAGS = $(CXXFLAGS) /arch:AVX2
 # CXXFLAGS = $(CXXFLAGS) /DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP
 # CXXFLAGS = $(CXXFLAGS) /DWINAPI_FAMILY=WINAPI_FAMILY_APP
 AS = ml64.exe