diff --git a/BuildTools/AutoUpdateBuilder/AutoUpdateBuilder.csproj b/BuildTools/AutoUpdateBuilder/AutoUpdateBuilder.csproj
index 584d9dbb0..6ba5fa970 100644
--- a/BuildTools/AutoUpdateBuilder/AutoUpdateBuilder.csproj
+++ b/BuildTools/AutoUpdateBuilder/AutoUpdateBuilder.csproj
@@ -5,6 +5,7 @@
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{17E3EB29-87FD-4BE9-A531-8DAD8B295494}</ProjectGuid>
     <OutputType>Exe</OutputType>
+    <Prefer32Bit>False</Prefer32Bit>    
     <RootNamespace>AutoUpdateBuilder</RootNamespace>
     <AssemblyName>AutoUpdateBuilder</AssemblyName>
     <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
diff --git a/BuildTools/DependencyFinder/DependencyFinder.csproj b/BuildTools/DependencyFinder/DependencyFinder.csproj
index db9645ffb..42a948ebf 100644
--- a/BuildTools/DependencyFinder/DependencyFinder.csproj
+++ b/BuildTools/DependencyFinder/DependencyFinder.csproj
@@ -5,6 +5,7 @@
     <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
     <ProjectGuid>{3E891818-579A-4C06-8066-4C702BFA5921}</ProjectGuid>
     <OutputType>Exe</OutputType>
+    <Prefer32Bit>False</Prefer32Bit>    
     <RootNamespace>DependencyFinder</RootNamespace>
     <AssemblyName>DependencyFinder</AssemblyName>
     <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
diff --git a/BuildTools/UpdateVersionStamp/UpdateVersionStamp.csproj b/BuildTools/UpdateVersionStamp/UpdateVersionStamp.csproj
index a5262c8e3..e8524f649 100644
--- a/BuildTools/UpdateVersionStamp/UpdateVersionStamp.csproj
+++ b/BuildTools/UpdateVersionStamp/UpdateVersionStamp.csproj
@@ -7,6 +7,7 @@
     <SchemaVersion>2.0</SchemaVersion>
     <ProjectGuid>{1920C3B0-98A0-410F-8972-9C19FA616FE5}</ProjectGuid>
     <OutputType>Exe</OutputType>
+    <Prefer32Bit>False</Prefer32Bit>    
     <RootNamespace>UpdateVersionStamp</RootNamespace>
     <AssemblyName>UpdateVersionStamp</AssemblyName>
     <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
diff --git a/Duplicati/CommandLine/BackendTester/Duplicati.CommandLine.BackendTester.csproj b/Duplicati/CommandLine/BackendTester/Duplicati.CommandLine.BackendTester.csproj
index f98b7f235..63882d1bf 100644
--- a/Duplicati/CommandLine/BackendTester/Duplicati.CommandLine.BackendTester.csproj
+++ b/Duplicati/CommandLine/BackendTester/Duplicati.CommandLine.BackendTester.csproj
@@ -5,6 +5,7 @@
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{E7280DCA-7776-4A73-B9B5-41FD77FC8799}</ProjectGuid>
     <OutputType>Exe</OutputType>
+    <Prefer32Bit>False</Prefer32Bit>        
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Duplicati.CommandLine.BackendTester</RootNamespace>
     <AssemblyName>Duplicati.CommandLine.BackendTester</AssemblyName>
diff --git a/Duplicati/CommandLine/BackendTool/Duplicati.CommandLine.BackendTool.csproj b/Duplicati/CommandLine/BackendTool/Duplicati.CommandLine.BackendTool.csproj
index 310bf52a7..060d89ed2 100644
--- a/Duplicati/CommandLine/BackendTool/Duplicati.CommandLine.BackendTool.csproj
+++ b/Duplicati/CommandLine/BackendTool/Duplicati.CommandLine.BackendTool.csproj
@@ -5,6 +5,7 @@
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{2AF960C0-357D-4D44-A3D5-8B6E89DB0F11}</ProjectGuid>
     <OutputType>Exe</OutputType>
+    <Prefer32Bit>False</Prefer32Bit>    
     <RootNamespace>Duplicati.CommandLine.BackendTool</RootNamespace>
     <AssemblyName>Duplicati.CommandLine.BackendTool</AssemblyName>
     <SignAssembly>false</SignAssembly>
diff --git a/Duplicati/CommandLine/Duplicati.CommandLine.csproj b/Duplicati/CommandLine/Duplicati.CommandLine.csproj
index c5f41c54d..96784c172 100644
--- a/Duplicati/CommandLine/Duplicati.CommandLine.csproj
+++ b/Duplicati/CommandLine/Duplicati.CommandLine.csproj
@@ -5,6 +5,7 @@
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{81765A64-3661-4E3E-B850-2F6F87A51F74}</ProjectGuid>
     <OutputType>Exe</OutputType>
+    <Prefer32Bit>False</Prefer32Bit>		
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Duplicati.CommandLine</RootNamespace>
     <AssemblyName>Duplicati.CommandLine</AssemblyName>
diff --git a/Duplicati/CommandLine/RecoveryTool/Duplicati.CommandLine.RecoveryTool.csproj b/Duplicati/CommandLine/RecoveryTool/Duplicati.CommandLine.RecoveryTool.csproj
index 078c477da..ed48717ad 100644
--- a/Duplicati/CommandLine/RecoveryTool/Duplicati.CommandLine.RecoveryTool.csproj
+++ b/Duplicati/CommandLine/RecoveryTool/Duplicati.CommandLine.RecoveryTool.csproj
@@ -5,6 +5,7 @@
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{4A010589-76E6-4F05-A5C4-4598D5DF11F8}</ProjectGuid>
     <OutputType>Exe</OutputType>
+    <Prefer32Bit>False</Prefer32Bit>    
     <RootNamespace>Duplicati.CommandLine.RecoveryTool</RootNamespace>
     <AssemblyName>Duplicati.CommandLine.RecoveryTool</AssemblyName>
     <SignAssembly>false</SignAssembly>
diff --git a/Duplicati/Library/AutoUpdater/Duplicati.Library.AutoUpdater.csproj b/Duplicati/Library/AutoUpdater/Duplicati.Library.AutoUpdater.csproj
index 649d2bc0f..85bf1046d 100644
--- a/Duplicati/Library/AutoUpdater/Duplicati.Library.AutoUpdater.csproj
+++ b/Duplicati/Library/AutoUpdater/Duplicati.Library.AutoUpdater.csproj
@@ -5,6 +5,7 @@
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{7E119745-1F62-43F0-936C-F312A1912C0B}</ProjectGuid>
     <OutputType>Exe</OutputType>
+    <Prefer32Bit>False</Prefer32Bit>    
     <RootNamespace>Duplicati.Library.AutoUpdater</RootNamespace>
     <AssemblyName>Duplicati.Library.AutoUpdater</AssemblyName>
     <AssemblyOriginatorKeyFile>..\..\GUI\Duplicati.GUI.TrayIcon\Duplicati.snk</AssemblyOriginatorKeyFile>
diff --git a/Duplicati/Library/Snapshots/Duplicati.Library.Snapshots.csproj b/Duplicati/Library/Snapshots/Duplicati.Library.Snapshots.csproj
index f07018642..821f6df78 100644
--- a/Duplicati/Library/Snapshots/Duplicati.Library.Snapshots.csproj
+++ b/Duplicati/Library/Snapshots/Duplicati.Library.Snapshots.csproj
@@ -5,6 +5,7 @@
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{D63E53E4-A458-4C2F-914D-92F715F58ACE}</ProjectGuid>
     <OutputType>Exe</OutputType>
+    <Prefer32Bit>False</Prefer32Bit>    
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Duplicati.Library.Snapshots</RootNamespace>
     <AssemblyName>Duplicati.Library.Snapshots</AssemblyName>
diff --git a/Duplicati/Server/Duplicati.Server.csproj b/Duplicati/Server/Duplicati.Server.csproj
index b77ca3c17..55651e573 100644
--- a/Duplicati/Server/Duplicati.Server.csproj
+++ b/Duplicati/Server/Duplicati.Server.csproj
@@ -5,6 +5,7 @@
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{19E661D2-C5DA-4F35-B3EE-7586E5734B5F}</ProjectGuid>
     <OutputType>Exe</OutputType>
+    <Prefer32Bit>False</Prefer32Bit>    
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Duplicati.Server</RootNamespace>
     <AssemblyName>Duplicati.Server</AssemblyName>
diff --git a/Duplicati/Service/Duplicati.Service.csproj b/Duplicati/Service/Duplicati.Service.csproj
index dc119fae7..20b63ea2d 100644
--- a/Duplicati/Service/Duplicati.Service.csproj
+++ b/Duplicati/Service/Duplicati.Service.csproj
@@ -5,6 +5,7 @@
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{E93F3DE2-FF3A-4709-96A3-8190AA14FA25}</ProjectGuid>
     <OutputType>Exe</OutputType>
+    <Prefer32Bit>False</Prefer32Bit>    
     <RootNamespace>Duplicati.Service</RootNamespace>
     <AssemblyName>Duplicati.Service</AssemblyName>
     <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
diff --git a/Duplicati/WindowsService/WindowsService.csproj b/Duplicati/WindowsService/WindowsService.csproj
index d25403e62..8bf71c5d3 100644
--- a/Duplicati/WindowsService/WindowsService.csproj
+++ b/Duplicati/WindowsService/WindowsService.csproj
@@ -6,6 +6,7 @@
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{BEF7AF9A-3978-4F90-8592-198BF6EA6C6B}</ProjectGuid>
     <OutputType>Exe</OutputType>
+    <Prefer32Bit>False</Prefer32Bit>    
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Duplicati.WindowsService</RootNamespace>
     <AssemblyName>Duplicati.WindowsService</AssemblyName>
diff --git a/Tools/CGIProxyHandler/CGIProxyHandler.csproj b/Tools/CGIProxyHandler/CGIProxyHandler.csproj
index 40d9ab562..1939f37ec 100644
--- a/Tools/CGIProxyHandler/CGIProxyHandler.csproj
+++ b/Tools/CGIProxyHandler/CGIProxyHandler.csproj
@@ -5,6 +5,7 @@
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{EA4505A7-3BDE-4057-BD90-94808D649570}</ProjectGuid>
     <OutputType>Exe</OutputType>
+    <Prefer32Bit>False</Prefer32Bit>    
     <RootNamespace>CGIProxyHandler</RootNamespace>
     <AssemblyName>CGIProxyHandler</AssemblyName>
     <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
diff --git a/Tools/SQLiteTool/SQLiteTool.csproj b/Tools/SQLiteTool/SQLiteTool.csproj
index 8eb20e101..ef01989e5 100644
--- a/Tools/SQLiteTool/SQLiteTool.csproj
+++ b/Tools/SQLiteTool/SQLiteTool.csproj
@@ -7,6 +7,7 @@
     <SchemaVersion>2.0</SchemaVersion>
     <ProjectGuid>{3B546BD0-7549-4CE3-9B68-5C149B8AA2E7}</ProjectGuid>
     <OutputType>Exe</OutputType>
+    <Prefer32Bit>False</Prefer32Bit>    
     <RootNamespace>SQLiteTool</RootNamespace>
     <AssemblyName>SQLiteTool</AssemblyName>
   </PropertyGroup>
diff --git a/thirdparty/TlsTest/TlsTest.csproj b/thirdparty/TlsTest/TlsTest.csproj
index e7897ac9e..7ef228c3b 100644
--- a/thirdparty/TlsTest/TlsTest.csproj
+++ b/thirdparty/TlsTest/TlsTest.csproj
@@ -5,6 +5,7 @@
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{95B35AA3-7F86-43F1-9794-0CA115CFDF32}</ProjectGuid>
     <OutputType>Exe</OutputType>
+    <Prefer32Bit>False</Prefer32Bit>    
     <RootNamespace>TlsTest</RootNamespace>
     <AssemblyName>TlsTest</AssemblyName>
     <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
diff --git a/thirdparty/mozroots/mozroots.csproj b/thirdparty/mozroots/mozroots.csproj
index dafa9eba6..a681b630e 100644
--- a/thirdparty/mozroots/mozroots.csproj
+++ b/thirdparty/mozroots/mozroots.csproj
@@ -5,6 +5,7 @@
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{C44F0C79-B4E2-4D41-B357-1FD7B8888E78}</ProjectGuid>
     <OutputType>Exe</OutputType>
+    <Prefer32Bit>False</Prefer32Bit>    
     <RootNamespace>mozroots</RootNamespace>
     <AssemblyName>mozroots</AssemblyName>
     <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>