diff --git a/IPhreeqc.vcxproj b/IPhreeqc.vcxproj
index 818fd9b5..c3f32ca1 100644
--- a/IPhreeqc.vcxproj
+++ b/IPhreeqc.vcxproj
@@ -212,7 +212,7 @@ copy "$(TargetDir)$(TargetName).lib" "libx64\$(TargetName).lib"
       </PrecompiledHeaderOutputFile>
       <WarningLevel>Level3</WarningLevel>
       <SuppressStartupBanner>true</SuppressStartupBanner>
-      <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <ResourceCompile>
@@ -350,7 +350,7 @@ copy "$(TargetDir)$(TargetName).lib" "dllx64\$(TargetName).lib"
       </PrecompiledHeaderOutputFile>
       <WarningLevel>Level3</WarningLevel>
       <SuppressStartupBanner>true</SuppressStartupBanner>
-      <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <ResourceCompile>
diff --git a/unit/unit.2010.sln b/unit/unit.2010.sln
new file mode 100644
index 00000000..ddbbba56
--- /dev/null
+++ b/unit/unit.2010.sln
@@ -0,0 +1,26 @@
+
+Microsoft Visual Studio Solution File, Format Version 11.00
+# Visual Studio 2010
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "unit", "unit.vcxproj", "{270BB952-FCB2-4FA8-821E-BB750E83C902}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Win32 = Debug|Win32
+		Debug|x64 = Debug|x64
+		Release|Win32 = Release|Win32
+		Release|x64 = Release|x64
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{270BB952-FCB2-4FA8-821E-BB750E83C902}.Debug|Win32.ActiveCfg = Debug|Win32
+		{270BB952-FCB2-4FA8-821E-BB750E83C902}.Debug|Win32.Build.0 = Debug|Win32
+		{270BB952-FCB2-4FA8-821E-BB750E83C902}.Debug|x64.ActiveCfg = Debug|x64
+		{270BB952-FCB2-4FA8-821E-BB750E83C902}.Debug|x64.Build.0 = Debug|x64
+		{270BB952-FCB2-4FA8-821E-BB750E83C902}.Release|Win32.ActiveCfg = Release|Win32
+		{270BB952-FCB2-4FA8-821E-BB750E83C902}.Release|Win32.Build.0 = Release|Win32
+		{270BB952-FCB2-4FA8-821E-BB750E83C902}.Release|x64.ActiveCfg = Release|x64
+		{270BB952-FCB2-4FA8-821E-BB750E83C902}.Release|x64.Build.0 = Release|x64
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal
diff --git a/unit/unit.vcxproj b/unit/unit.vcxproj
index 1bca63b5..cc9d7e93 100644
--- a/unit/unit.vcxproj
+++ b/unit/unit.vcxproj
@@ -63,7 +63,7 @@
     <_ProjectFileVersion>10.0.40219.1</_ProjectFileVersion>
     <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(Configuration)\</OutDir>
     <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(Configuration)\</IntDir>
-    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</LinkIncremental>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">false</LinkIncremental>
     <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">$(SolutionDir)$(Platform)\$(Configuration)\</OutDir>
     <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">$(Platform)\$(Configuration)\</IntDir>
     <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(Configuration)\</OutDir>
@@ -71,6 +71,8 @@
     <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</LinkIncremental>
     <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|x64'">$(SolutionDir)$(Platform)\$(Configuration)\</OutDir>
     <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|x64'">$(Platform)\$(Configuration)\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|x64'">false</LinkIncremental>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">false</LinkIncremental>
   </PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <Midl>
@@ -79,18 +81,18 @@
       </HeaderFileName>
     </Midl>
     <ClCompile>
-      <AdditionalOptions>/MP %(AdditionalOptions)</AdditionalOptions>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>$(DEV_CPPUNIT_1_10)/include;../src;../src/phreeqcpp;../src/phreeqcpp/phreeqc;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(DEV_CPPUNIT_VS2010)/include;../src;../src/phreeqcpp;../src/phreeqcpp/phreeqc;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>CPPUNIT;WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <MinimalRebuild>true</MinimalRebuild>
+      <MinimalRebuild>false</MinimalRebuild>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <PrecompiledHeaderOutputFile>.\Debug/unit.pch</PrecompiledHeaderOutputFile>
       <BrowseInformation>true</BrowseInformation>
       <WarningLevel>Level3</WarningLevel>
       <SuppressStartupBanner>true</SuppressStartupBanner>
-      <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <ResourceCompile>
       <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
@@ -99,7 +101,7 @@
     <Link>
       <AdditionalDependencies>cppunitd.lib;odbc32.lib;odbccp32.lib;Shlwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <SuppressStartupBanner>true</SuppressStartupBanner>
-      <AdditionalLibraryDirectories>$(DEV_CPPUNIT_1_10)/lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>$(DEV_CPPUNIT_VS2010)/lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <SubSystem>Console</SubSystem>
       <TargetMachine>MachineX86</TargetMachine>
@@ -112,17 +114,19 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>$(DEV_CPPUNIT_1_10)/include;../src;../src/phreeqcpp;../src/phreeqcpp/phreeqc;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(DEV_CPPUNIT_VS2010)/include;../src;../src/phreeqcpp;../src/phreeqcpp/phreeqc;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>CPPUNIT;WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <WarningLevel>Level3</WarningLevel>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
       <AdditionalDependencies>cppunitd.lib;%(AdditionalDependencies)</AdditionalDependencies>
-      <AdditionalLibraryDirectories>$(DEV_CPPUNIT_1_10)/libx64;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>$(DEV_CPPUNIT_VS2010)/libx64;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
@@ -135,7 +139,7 @@
       <AdditionalOptions>/MP %(AdditionalOptions)</AdditionalOptions>
       <Optimization>MaxSpeed</Optimization>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>$(DEV_CPPUNIT_1_10)/include;../src;../src/phreeqcpp;../src/phreeqcpp/phreeqc;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(DEV_CPPUNIT_VS2010)/include;../src;../src/phreeqcpp;../src/phreeqcpp/phreeqc;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>CPPUNIT;WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
@@ -152,7 +156,7 @@
     <Link>
       <AdditionalDependencies>cppunit.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <SuppressStartupBanner>true</SuppressStartupBanner>
-      <AdditionalLibraryDirectories>$(DEV_CPPUNIT_1_10)/lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>$(DEV_CPPUNIT_VS2010)/lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <ProgramDatabaseFile>.\Release/unit.pdb</ProgramDatabaseFile>
       <SubSystem>Console</SubSystem>
       <TargetMachine>MachineX86</TargetMachine>
@@ -164,13 +168,15 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
-      <AdditionalIncludeDirectories>$(DEV_CPPUNIT_1_10)/include;../src;../src/phreeqcpp;../src/phreeqcpp/phreeqc;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(DEV_CPPUNIT_VS2010)/include;../src;../src/phreeqcpp;../src/phreeqcpp/phreeqc;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>CPPUNIT;WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
       <AdditionalDependencies>cppunit.lib;%(AdditionalDependencies)</AdditionalDependencies>
-      <AdditionalLibraryDirectories>$(DEV_CPPUNIT_1_10)/libx64;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>$(DEV_CPPUNIT_VS2010)/libx64;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <SubSystem>Console</SubSystem>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>