SSIS Script Task errors when trying to connect to SharePoint using Client Object Model

string client = Dts.Variables["SPclient"].Value.ToString();
string user = Dts.Variables["SPuser"].Value.ToString();
string pass = Dts.Variables["SPpass"].Value.ToString();

MessageBox.Show(client + " " + user + " " + pass);
            
//Debug style
NetworkCredential credentials = new NetworkCredential(user, pass);
ClientContext clientContext = new ClientContext(client);


/*
NetworkCredential credentials = new NetworkCredential(user, pass);
ClientContext clientContext = new ClientContext(client);
Web site = clientContext.Web;
List list = site.Lists.GetByTitle("Projects");

try
{
       // Load Credentials for authentication
       clientContext.Credentials = credentials;
       // Load the site
       clientContext.Load(site);
       // Load the site list
       clientContext.Load(list);
       // Execute queries
       clientContext.ExecuteQuery();
       MessageBox.Show("Title: {0}", site.Title);

       // Load the folders
       var folders = list.RootFolder.Folders;
       clientContext.Load(folders);
       // Execute the queries
       clientContext.ExecuteQuery();

       // Create a new folder and execute the query
       var newFolder = folders.Add("TESTSSISFOLDER");
       clientContext.ExecuteQuery();
       }
       catch (Exception e)
       {
             MessageBox.Show(e.ToString());
       }

I am trying to run this script in SSIS and I get this error http://img96.imageshack.us/img96/3585/helphj.png

after only these 2 lines of code.

If I try to run the whole script (the commented block) in a standalone console application, it works, but it errors in the Script Task when I set the ClientContext.

Any ideas to why this is happening?

Thanks in advance!