diff --git a/ttalib-1.1/TTALib.vcxproj b/ttalib-1.1/TTALib.vcxproj
index 440bc43..d4de949 100644
--- a/ttalib-1.1/TTALib.vcxproj
+++ b/ttalib-1.1/TTALib.vcxproj
@@ -95,7 +95,6 @@
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   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
-      <AdditionalOptions>/Ze %(AdditionalOptions)</AdditionalOptions>
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       <PreprocessorDefinitions>WIN32;_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
@@ -114,7 +113,6 @@
       <TargetEnvironment>X64</TargetEnvironment>
     </Midl>
     <ClCompile>
-      <AdditionalOptions>/Ze %(AdditionalOptions)</AdditionalOptions>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
@@ -130,7 +128,6 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
-      <AdditionalOptions>/Ze %(AdditionalOptions)</AdditionalOptions>
       <Optimization>MaxSpeed</Optimization>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
       <PreprocessorDefinitions>WIN32;NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
@@ -146,7 +143,6 @@
       <TargetEnvironment>X64</TargetEnvironment>
     </Midl>
     <ClCompile>
-      <AdditionalOptions>/Ze %(AdditionalOptions)</AdditionalOptions>
       <Optimization>Full</Optimization>
       <InlineFunctionExpansion>AnySuitable</InlineFunctionExpansion>
       <IntrinsicFunctions>true</IntrinsicFunctions>
@@ -158,7 +154,6 @@
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
       <BufferSecurityCheck>false</BufferSecurityCheck>
       <FunctionLevelLinking>false</FunctionLevelLinking>
-      <EnableEnhancedInstructionSet>StreamingSIMDExtensions</EnableEnhancedInstructionSet>
       <FloatingPointModel>Fast</FloatingPointModel>
       <WarningLevel>Level4</WarningLevel>
     </ClCompile>