Fixed VB demos to compile against Ice installation

54 files changed, 108 insertions, 106 deletions

diff --git a/cs/demo/Ice/value/Client.cs b/cs/demo/Ice/value/Client.cs
index 5e07eb7eb8a..51693910abf 100644
--- a/cs/demo/Ice/value/Client.cs
+++ b/cs/demo/Ice/value/Client.cs
@@ -121,7 +121,7 @@ public class Client
             derivedAsBase = initial.getDerivedPrinter();
             DerivedPrinter derived = (DerivedPrinter)derivedAsBase;
 
-            Console.Out.WriteLine("==> class cast to derived object succeded");
+            Console.Out.WriteLine("==> class cast to derived object succeeded");
             Console.Out.WriteLine("==> The type ID of the received object is \"" + derived.ice_id() + "\"");
 
             Console.Out.WriteLine();
diff --git a/java/demo/Ice/value/Client.java b/java/demo/Ice/value/Client.java
index d6eaef9878c..9b84a115135 100644
--- a/java/demo/Ice/value/Client.java
+++ b/java/demo/Ice/value/Client.java
@@ -150,7 +150,7 @@ public class Client extends Ice.Application
         derivedAsBase = initial.getDerivedPrinter();
         DerivedPrinter derived = (Demo.DerivedPrinter)derivedAsBase;
 
-        System.out.println("==> class cast to derived object succeded");
+        System.out.println("==> class cast to derived object succeeded");
         System.out.println("==> The type ID of the received object is \"" + derived.ice_id() + "\"");
 
         System.out.println();
diff --git a/vb/demo/Glacier2/callback/client.vbproj b/vb/demo/Glacier2/callback/client.vbproj
index b143aa481da..0b2089d7f0a 100644
--- a/vb/demo/Glacier2/callback/client.vbproj
+++ b/vb/demo/Glacier2/callback/client.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -121,4 +121,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Glacier2/callback/server.vbproj b/vb/demo/Glacier2/callback/server.vbproj
index 6853d7a69fc..c7ff3daef06 100644
--- a/vb/demo/Glacier2/callback/server.vbproj
+++ b/vb/demo/Glacier2/callback/server.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -115,4 +115,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Glacier2/callback/slice.csproj b/vb/demo/Glacier2/callback/slice.csproj
index 81c4b7126e1..cbbf6094b3b 100644
--- a/vb/demo/Glacier2/callback/slice.csproj
+++ b/vb/demo/Glacier2/callback/slice.csproj
@@ -15,7 +15,7 @@
     <OldToolsVersion>3.5</OldToolsVersion>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -71,4 +71,4 @@
       <UserProperties ZerocIce_Enabled="True" ZerocIce_VerboseLevel="1" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/async/client.vbproj b/vb/demo/Ice/async/client.vbproj
index f2aa89f9faa..3639ded27d3 100644
--- a/vb/demo/Ice/async/client.vbproj
+++ b/vb/demo/Ice/async/client.vbproj
@@ -33,7 +33,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -113,4 +113,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/async/server.vbproj b/vb/demo/Ice/async/server.vbproj
index 8d9ee5c3833..fa83d19ac1d 100644
--- a/vb/demo/Ice/async/server.vbproj
+++ b/vb/demo/Ice/async/server.vbproj
@@ -33,7 +33,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -119,4 +119,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/async/slice.csproj b/vb/demo/Ice/async/slice.csproj
index 7d943033470..d0c0be6d0b0 100644
--- a/vb/demo/Ice/async/slice.csproj
+++ b/vb/demo/Ice/async/slice.csproj
@@ -15,7 +15,7 @@
     <OldToolsVersion>3.5</OldToolsVersion>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -71,4 +71,4 @@
       <UserProperties ZerocIce_Enabled="True" ZerocIce_VerboseLevel="1" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/bidir/client.vbproj b/vb/demo/Ice/bidir/client.vbproj
index 3d84122fb52..457e322311c 100644
--- a/vb/demo/Ice/bidir/client.vbproj
+++ b/vb/demo/Ice/bidir/client.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -115,4 +115,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/bidir/server.vbproj b/vb/demo/Ice/bidir/server.vbproj
index 653e36bb889..62b56d968bd 100644
--- a/vb/demo/Ice/bidir/server.vbproj
+++ b/vb/demo/Ice/bidir/server.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -115,4 +115,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/bidir/slice.csproj b/vb/demo/Ice/bidir/slice.csproj
index 6b70104ea13..47a101dfe48 100644
--- a/vb/demo/Ice/bidir/slice.csproj
+++ b/vb/demo/Ice/bidir/slice.csproj
@@ -15,7 +15,7 @@
     <OldToolsVersion>3.5</OldToolsVersion>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -71,4 +71,4 @@
   <ItemGroup>
     <Folder Include="Properties\" />
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/callback/client.vbproj b/vb/demo/Ice/callback/client.vbproj
index c2fb17a3d52..d9e2e6bed7b 100644
--- a/vb/demo/Ice/callback/client.vbproj
+++ b/vb/demo/Ice/callback/client.vbproj
@@ -33,7 +33,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -119,4 +119,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/callback/server.vbproj b/vb/demo/Ice/callback/server.vbproj
index 4b0f61b4ae3..5628d708d07 100644
--- a/vb/demo/Ice/callback/server.vbproj
+++ b/vb/demo/Ice/callback/server.vbproj
@@ -33,7 +33,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -119,4 +119,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/callback/slice.csproj b/vb/demo/Ice/callback/slice.csproj
index 4c00ed3067e..203d0e25331 100644
--- a/vb/demo/Ice/callback/slice.csproj
+++ b/vb/demo/Ice/callback/slice.csproj
@@ -15,7 +15,7 @@
     <OldToolsVersion>3.5</OldToolsVersion>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -71,4 +71,4 @@
       <UserProperties ZerocIce_VerboseLevel="1" ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/hello/client.vbproj b/vb/demo/Ice/hello/client.vbproj
index f065710e9b2..0dbf5832981 100644
--- a/vb/demo/Ice/hello/client.vbproj
+++ b/vb/demo/Ice/hello/client.vbproj
@@ -33,7 +33,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -116,4 +116,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/hello/server.vbproj b/vb/demo/Ice/hello/server.vbproj
index 00de92d0206..ec119a24c6f 100644
--- a/vb/demo/Ice/hello/server.vbproj
+++ b/vb/demo/Ice/hello/server.vbproj
@@ -33,7 +33,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -119,4 +119,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/hello/slice.csproj b/vb/demo/Ice/hello/slice.csproj
index 05345804ba3..41c112712b9 100644
--- a/vb/demo/Ice/hello/slice.csproj
+++ b/vb/demo/Ice/hello/slice.csproj
@@ -15,7 +15,7 @@
     <OldToolsVersion>3.5</OldToolsVersion>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -71,4 +71,4 @@
       <UserProperties ZerocIce_VerboseLevel="1" ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/invoke/client.vbproj b/vb/demo/Ice/invoke/client.vbproj
index d906190c436..6751d48b84d 100644
--- a/vb/demo/Ice/invoke/client.vbproj
+++ b/vb/demo/Ice/invoke/client.vbproj
@@ -33,7 +33,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -113,4 +113,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/invoke/server.vbproj b/vb/demo/Ice/invoke/server.vbproj
index cd531c85118..2429a1cee64 100644
--- a/vb/demo/Ice/invoke/server.vbproj
+++ b/vb/demo/Ice/invoke/server.vbproj
@@ -33,7 +33,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -116,4 +116,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/invoke/slice.csproj b/vb/demo/Ice/invoke/slice.csproj
index 218499c3728..fee4503ff1c 100644
--- a/vb/demo/Ice/invoke/slice.csproj
+++ b/vb/demo/Ice/invoke/slice.csproj
@@ -15,7 +15,7 @@
     <OldToolsVersion>3.5</OldToolsVersion>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -71,4 +71,4 @@
       <UserProperties ZerocIce_VerboseLevel="1" ZerocIce_Enabled="True" ZerocIce_Streaming="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/latency/client.vbproj b/vb/demo/Ice/latency/client.vbproj
index 464abc581ff..df425e5cc5a 100644
--- a/vb/demo/Ice/latency/client.vbproj
+++ b/vb/demo/Ice/latency/client.vbproj
@@ -33,7 +33,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -113,4 +113,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/latency/server.vbproj b/vb/demo/Ice/latency/server.vbproj
index 3903f4cd85e..1706a42b8eb 100644
--- a/vb/demo/Ice/latency/server.vbproj
+++ b/vb/demo/Ice/latency/server.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -112,4 +112,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/latency/slice.csproj b/vb/demo/Ice/latency/slice.csproj
index bdb79de6c07..76032a1e245 100644
--- a/vb/demo/Ice/latency/slice.csproj
+++ b/vb/demo/Ice/latency/slice.csproj
@@ -15,7 +15,7 @@
     <OldToolsVersion>3.5</OldToolsVersion>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -71,4 +71,4 @@
       <UserProperties ZerocIce_VerboseLevel="1" ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/minimal/client.vbproj b/vb/demo/Ice/minimal/client.vbproj
index 534b925f84c..cb2076836cb 100644
--- a/vb/demo/Ice/minimal/client.vbproj
+++ b/vb/demo/Ice/minimal/client.vbproj
@@ -33,7 +33,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -113,4 +113,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/minimal/server.vbproj b/vb/demo/Ice/minimal/server.vbproj
index 12d44d531bf..ce754d8cfb9 100644
--- a/vb/demo/Ice/minimal/server.vbproj
+++ b/vb/demo/Ice/minimal/server.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -115,4 +115,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/minimal/slice.csproj b/vb/demo/Ice/minimal/slice.csproj
index 4a39ab4c8a3..819a41c2777 100644
--- a/vb/demo/Ice/minimal/slice.csproj
+++ b/vb/demo/Ice/minimal/slice.csproj
@@ -15,7 +15,7 @@
     <OldToolsVersion>3.5</OldToolsVersion>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -71,4 +71,4 @@
       <UserProperties ZerocIce_VerboseLevel="1" ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/nested/client.vbproj b/vb/demo/Ice/nested/client.vbproj
index 7c7a9b5f20f..f712eaabbf2 100644
--- a/vb/demo/Ice/nested/client.vbproj
+++ b/vb/demo/Ice/nested/client.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -115,4 +115,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/nested/server.vbproj b/vb/demo/Ice/nested/server.vbproj
index e5bbc4bc8a2..c796db21227 100644
--- a/vb/demo/Ice/nested/server.vbproj
+++ b/vb/demo/Ice/nested/server.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -115,4 +115,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/nested/slice.csproj b/vb/demo/Ice/nested/slice.csproj
index bd5b634eb71..c9f4a6fa584 100644
--- a/vb/demo/Ice/nested/slice.csproj
+++ b/vb/demo/Ice/nested/slice.csproj
@@ -15,7 +15,7 @@
     <OldToolsVersion>3.5</OldToolsVersion>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -71,4 +71,4 @@
       <UserProperties ZerocIce_VerboseLevel="1" ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/session/client.vbproj b/vb/demo/Ice/session/client.vbproj
index 714eb1ef376..a674a753094 100644
--- a/vb/demo/Ice/session/client.vbproj
+++ b/vb/demo/Ice/session/client.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -112,4 +112,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/session/server.vbproj b/vb/demo/Ice/session/server.vbproj
index af6823ca372..d818c180763 100644
--- a/vb/demo/Ice/session/server.vbproj
+++ b/vb/demo/Ice/session/server.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -124,4 +124,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/session/slice.csproj b/vb/demo/Ice/session/slice.csproj
index b0600aa5a0e..ed5bf24001f 100644
--- a/vb/demo/Ice/session/slice.csproj
+++ b/vb/demo/Ice/session/slice.csproj
@@ -15,7 +15,7 @@
     <OldToolsVersion>3.5</OldToolsVersion>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -71,4 +71,4 @@
       <UserProperties ZerocIce_VerboseLevel="1" ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/throughput/client.vbproj b/vb/demo/Ice/throughput/client.vbproj
index c1b8e775f3b..b07e351d407 100644
--- a/vb/demo/Ice/throughput/client.vbproj
+++ b/vb/demo/Ice/throughput/client.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -112,4 +112,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/throughput/server.vbproj b/vb/demo/Ice/throughput/server.vbproj
index 4ab85cd8266..a32597a8ee0 100644
--- a/vb/demo/Ice/throughput/server.vbproj
+++ b/vb/demo/Ice/throughput/server.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -115,4 +115,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/throughput/slice.csproj b/vb/demo/Ice/throughput/slice.csproj
index 4f9e0e5c26f..597ba682b9a 100644
--- a/vb/demo/Ice/throughput/slice.csproj
+++ b/vb/demo/Ice/throughput/slice.csproj
@@ -15,7 +15,7 @@
     <OldToolsVersion>3.5</OldToolsVersion>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -71,4 +71,4 @@
       <UserProperties ZerocIce_VerboseLevel="1" ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/Ice/value/Client.vb b/vb/demo/Ice/value/Client.vb
index 8207c5766b4..739b9141323 100644
--- a/vb/demo/Ice/value/Client.vb
+++ b/vb/demo/Ice/value/Client.vb
@@ -108,7 +108,7 @@ Module ValueC
             derivedAsBase = initial.getDerivedPrinter()
             Dim derived As DerivedPrinter = CType(derivedAsBase, DerivedPrinter)
 
-            Console.Out.WriteLine("==> class cast to derived object succeded")
+            Console.Out.WriteLine("==> class cast to derived object succeeded")
             Console.Out.WriteLine("==> The type ID of the received object is """ & derived.ice_id() & """")
 
             Console.Out.WriteLine()
@@ -123,9 +123,11 @@ Module ValueC
             derived.printUppercase()
 
 	    Console.Out.WriteLine()
-            Console.Out.WriteLine("Finally, we try the same again, but instead of returning the")
-            Console.Out.WriteLine("derived object, we throw an exception containing the derived")
-            Console.Out.WriteLine("object.")
+	    Console.Out.WriteLine("Now let's make sure that slice is preserved with [\"preserve-slice\"]")
+            Console.Out.WriteLine("metadata. We create a derived type on the client and pass it to the")
+            Console.Out.WriteLine("server, which does not have a factory for the derived type. We do a")
+            Console.Out.WriteLine("class cast to make sure we can still access the derived type when")
+            Console.Out.WriteLine("it has been returned from the server.")
             Console.Out.WriteLine("[press enter]")
             Console.In.ReadLine()
 
diff --git a/vb/demo/Ice/value/client.vbproj b/vb/demo/Ice/value/client.vbproj
index cd58e9ea614..9793f0ac616 100644
--- a/vb/demo/Ice/value/client.vbproj
+++ b/vb/demo/Ice/value/client.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
diff --git a/vb/demo/Ice/value/server.vbproj b/vb/demo/Ice/value/server.vbproj
index 0cf95eb3e3b..2b0c6516ab7 100644
--- a/vb/demo/Ice/value/server.vbproj
+++ b/vb/demo/Ice/value/server.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
diff --git a/vb/demo/Ice/value/slice.csproj b/vb/demo/Ice/value/slice.csproj
index de4e9f90cdf..e24e367a9f6 100644
--- a/vb/demo/Ice/value/slice.csproj
+++ b/vb/demo/Ice/value/slice.csproj
@@ -15,7 +15,7 @@
     <OldToolsVersion>3.5</OldToolsVersion>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -71,4 +71,4 @@
       <UserProperties ZerocIce_VerboseLevel="1" ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/IceBox/hello/client.vbproj b/vb/demo/IceBox/hello/client.vbproj
index 6086352bdd9..503a81c6c16 100644
--- a/vb/demo/IceBox/hello/client.vbproj
+++ b/vb/demo/IceBox/hello/client.vbproj
@@ -33,7 +33,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -116,4 +116,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/IceBox/hello/helloservice.vbproj b/vb/demo/IceBox/hello/helloservice.vbproj
index 5b61495d47f..226768a8e73 100644
--- a/vb/demo/IceBox/hello/helloservice.vbproj
+++ b/vb/demo/IceBox/hello/helloservice.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -117,4 +117,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/IceBox/hello/slice.csproj b/vb/demo/IceBox/hello/slice.csproj
index 529591f7dac..1f6c9fb1c34 100644
--- a/vb/demo/IceBox/hello/slice.csproj
+++ b/vb/demo/IceBox/hello/slice.csproj
@@ -15,7 +15,7 @@
     <OldToolsVersion>3.5</OldToolsVersion>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -71,4 +71,4 @@
       <UserProperties ZerocIce_VerboseLevel="1" ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/IceGrid/simple/client.vbproj b/vb/demo/IceGrid/simple/client.vbproj
index 8e21eadbb84..7ce796327b0 100644
--- a/vb/demo/IceGrid/simple/client.vbproj
+++ b/vb/demo/IceGrid/simple/client.vbproj
@@ -33,7 +33,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -116,4 +116,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/IceGrid/simple/server.vbproj b/vb/demo/IceGrid/simple/server.vbproj
index 19ca4cd9391..7da0421d4dd 100644
--- a/vb/demo/IceGrid/simple/server.vbproj
+++ b/vb/demo/IceGrid/simple/server.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -115,4 +115,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/IceGrid/simple/slice.csproj b/vb/demo/IceGrid/simple/slice.csproj
index 7b75c188fed..fc3a1893fbd 100644
--- a/vb/demo/IceGrid/simple/slice.csproj
+++ b/vb/demo/IceGrid/simple/slice.csproj
@@ -15,7 +15,7 @@
     <OldToolsVersion>3.5</OldToolsVersion>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -71,4 +71,4 @@
       <UserProperties ZerocIce_VerboseLevel="1" ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/IceStorm/clock/publisher.vbproj b/vb/demo/IceStorm/clock/publisher.vbproj
index f1c1d2a44fd..2c8f4a35599 100644
--- a/vb/demo/IceStorm/clock/publisher.vbproj
+++ b/vb/demo/IceStorm/clock/publisher.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -115,4 +115,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/IceStorm/clock/slice.csproj b/vb/demo/IceStorm/clock/slice.csproj
index 3a064e36f9e..78f0a889c43 100644
--- a/vb/demo/IceStorm/clock/slice.csproj
+++ b/vb/demo/IceStorm/clock/slice.csproj
@@ -15,7 +15,7 @@
     <OldToolsVersion>3.5</OldToolsVersion>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -71,4 +71,4 @@
       <UserProperties ZerocIce_VerboseLevel="1" ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/IceStorm/clock/subscriber.vbproj b/vb/demo/IceStorm/clock/subscriber.vbproj
index ce0c1810e90..8c5a317aa01 100644
--- a/vb/demo/IceStorm/clock/subscriber.vbproj
+++ b/vb/demo/IceStorm/clock/subscriber.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
     <PublishUrl>publish\</PublishUrl>
     <Install>true</Install>
     <InstallFrom>Disk</InstallFrom>
@@ -162,4 +162,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/book/printer/client.vbproj b/vb/demo/book/printer/client.vbproj
index 79bf3a621ea..ba2fced4146 100644
--- a/vb/demo/book/printer/client.vbproj
+++ b/vb/demo/book/printer/client.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -112,4 +112,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/book/printer/server.vbproj b/vb/demo/book/printer/server.vbproj
index ff024525920..a0ebf39772a 100644
--- a/vb/demo/book/printer/server.vbproj
+++ b/vb/demo/book/printer/server.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -112,4 +112,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/book/printer/slice.csproj b/vb/demo/book/printer/slice.csproj
index c8488e3f179..c763601fabb 100644
--- a/vb/demo/book/printer/slice.csproj
+++ b/vb/demo/book/printer/slice.csproj
@@ -15,7 +15,7 @@
     <OldToolsVersion>3.5</OldToolsVersion>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -71,4 +71,4 @@
       <UserProperties ZerocIce_Enabled="True" ZerocIce_VerboseLevel="1" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/book/simple_filesystem/client.vbproj b/vb/demo/book/simple_filesystem/client.vbproj
index 46bd182ba3a..184f0237606 100644
--- a/vb/demo/book/simple_filesystem/client.vbproj
+++ b/vb/demo/book/simple_filesystem/client.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -112,4 +112,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/book/simple_filesystem/server.vbproj b/vb/demo/book/simple_filesystem/server.vbproj
index 3b7246d78d1..dfcf8e33c6b 100644
--- a/vb/demo/book/simple_filesystem/server.vbproj
+++ b/vb/demo/book/simple_filesystem/server.vbproj
@@ -32,7 +32,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>.\</OutputPath>
@@ -118,4 +118,4 @@
       <UserProperties ZerocIce_Enabled="True" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/vb/demo/book/simple_filesystem/slice.csproj b/vb/demo/book/simple_filesystem/slice.csproj
index 0d3c0671e12..72a0464c84b 100644
--- a/vb/demo/book/simple_filesystem/slice.csproj
+++ b/vb/demo/book/simple_filesystem/slice.csproj
@@ -15,7 +15,7 @@
     <OldToolsVersion>3.5</OldToolsVersion>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -71,4 +71,4 @@
       <UserProperties ZerocIce_Enabled="True" ZerocIce_VerboseLevel="1" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>