Problem in bulding exe for web player

Hi all,
I have made a game which uses Mouse and Wii consoles as controllers. I am able to build exe for PC and Mac Standalone successfully. Now, when i try for web player, it is throwing following execptions.

ArgumentException: The Assembly Microsoft.VisualC is referenced by UniWii. But the dll is not allowed to be included or could not be found.
UnityEditor.AssemblyHelper.AddReferencedAssembliesRecurse (System.String assemblyPath, System.Collections.Generic.List`1 alreadyFoundAssemblies, System.String[] allAssemblyPaths, System.String[] foldersToSearch, System.Collections.Generic.Dictionary`2 cache) (at C:/BuildAgent/work/842f9557127e852/Editor/Mono/AssemblyHelper.cs:52)
UnityEditor.AssemblyHelper.FindAssembliesReferencedBy (System.String[] paths, System.String[] foldersToSearch) (at C:/BuildAgent/work/842f9557127e852/Editor/Mono/AssemblyHelper.cs:87)
UnityEditor.HostView:OnGUI()

Error building Player: Extracting referenced dlls failed.
UnityEditor.HostView:OnGUI()

Exception: Error building Player: Extracting referenced dlls failed.
UnityEditor.BuildPlayerWindow.BuildPlayerWithDefaultSettings (Boolean askForBuildLocation, BuildOptions forceOptions) (at C:/BuildAgent/work/842f9557127e852/Editor/Mono/BuildPlayerWindow.cs:367)
UnityEditor.BuildPlayerWindow.GUIBuildButtons (Boolean enableBuildButton, Boolean enableBuildAndRunButton, Boolean canInstallInBuildFolder) (at C:/BuildAgent/work/842f9557127e852/Editor/Mono/BuildPlayerWindow.cs:972)
UnityEditor.BuildPlayerWindow.ShowBuildTargetSettings () (at C:/BuildAgent/work/842f9557127e852/Editor/Mono/BuildPlayerWindow.cs:953)
UnityEditor.BuildPlayerWindow.OnGUI () (at C:/BuildAgent/work/842f9557127e852/Editor/Mono/BuildPlayerWindow.cs:726)
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture)
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture)
System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters)
UnityEditor.HostView.Invoke (System.String methodName, System.Object obj) (at C:/BuildAgent/work/842f9557127e852/Editor/Mono/GUI/DockArea.cs:225)
UnityEditor.HostView.Invoke (System.String methodName) (at C:/BuildAgent/work/842f9557127e852/Editor/Mono/GUI/DockArea.cs:218)
UnityEditor.HostView.OnGUI () (at C:/BuildAgent/work/842f9557127e852/Editor/Mono/GUI/DockArea.cs:119)

One solution i found is to change the optimization in player settings to .Net 2.0. But in my editor optimization tab is disabled.

Please help me in fixing this problem. Thank you.

The error message already clearly answered that: “the dll is not allowed to be included”. You can’t use dlls in web players for security reasons.