<NME> app.config
<BEF> <?xml version="1.0"?>
<configuration>
<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/></startup></configuration>
</configuration>

<MSG> Var Tab fixes....

<DFF> @@ -1,3 +1,15 @@
 <?xml version="1.0"?>
 <configuration>
-<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/></startup></configuration>
+<configSections>
+    <sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
+        <section name="WPFVarTab.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
+    </sectionGroup>
+</configSections>
+<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/></startup><applicationSettings>
+        <WPFVarTab.Properties.Settings>
+            <setting name="AllowTagsControl" serializeAs="String">
+                <value>True</value>
+            </setting>
+        </WPFVarTab.Properties.Settings>
+    </applicationSettings>
+</configuration>

Var Tab fixes....