C #: Could not load file or assembly 'OpenPop, Version = 2.0.4.369, Culture = neutral, PublicKeyToken = null' or one of its dependencies

I am trying to use OpenPop.NET to access a gmail account, however I am getting below error even with basic testing code.

Error: System.Reflection.TargetInvocationException: An exception was thrown by the target of the call. ---> System.IO.FileNotFoundException: Could not load file or assembly OpenPop, Version = 2.0.4.369, Culture = neutral, PublicKeyToken = null or one of its dependencies. The system cannot find the file specified. Filename: 'OpenPop, Version = 2.0.4.369, Culture = neutral, PublicKeyToken = null' at ST_1694f4bcdf2a4068ae871201a2216457.csproj.ScriptMain.Main ()

WRN: Assembly binding registration is disabled. To enable Build Failure Logging, set the registry value [HKLM \ Software \ Microsoft \ Fusion! EnableLog] (DWORD) to 1. Note. There is some performance limitation related to the assembly binding failure protocol. To disable this feature, delete the registry value [HKLM \ Software \ Microsoft \ Fusion! EnableLog].

--- End of internal check of the exception stack --- at System.RuntimeMethodHandle._InvokeMethodFast (Object target, Object [] arguments, SignatureStruct & sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner) at System.Reflection.RuntimeMethodInfo.Invoke (Object obj. , Binder binder, Object [] parameters, CultureInfo culture, Boolean skipVisibilityChecks) to System.Reflection.RuntimeMethodInfo.Invoke (Object obj, BindingFlags invokeAttr, binder, Object [] parameters, CultureInfo culture) to System.RuntimeType.InvokeMember (String name , BindingFlags bindingFlags, Binder binder, Object target, Object [] provided byArgs, ParameterModifier [] modifiers, CultureInfo culture, String [] namedParams) at Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTATaskScriptingEngine.ExecuteScript ()

I am trying to do this in an SSIS package in SQL Server Business Intelligence Development Studio 2008 on a Windows 7 machine with .NET Framework 3.5 and 4. Both the OpenPop libraries and the task script referencing it, built in 3.5. I researched this for a few days but couldn't find anything that could fix it. I have tried to recompile the OpenPop DLL from source and remove and re-add the link several times.

The code I'm currently working with is posted below:

        Pop3Client client = new Pop3Client();

        try
        {
            client.Connect("pop.gmail.com", 995, true);

            try
            {
                client.Authenticate("user@domain.com", "mypassword");
                Console.WriteLine("Success");
                client.Disconnect();
            }
            catch
            {
                Console.WriteLine("Failed to authenticate");
                Dts.TaskResult = (int)ScriptResults.Failure;
                return;
            }
        }
        catch
        {
            Console.WriteLine("Failed to connect");
            Dts.TaskResult = (int)ScriptResults.Failure;
            return;
        }

        Dts.TaskResult = (int)ScriptResults.Success;

      

        
        
        
      

    

Thanks in advance.