Execute in seperate app domain

IsolatedAppDomain.cs

public sealed class Isolated<T> : IDisposable where T : MarshalByRefObject
{
   private AppDomain _domain;
   private T _value;

   public Isolated()
   {
      _domain = AppDomain.CreateDomain("Isolated:" + Guid.NewGuid(), 
         null, AppDomain.CurrentDomain.SetupInformation);

      Type type = typeof(T);
 
      _value = (T)_domain.CreateInstanceAndUnwrap(type.Assembly.FullName, type.FullName);
   }
 
   public T Value
   {
      get
      {
         return _value;
      }
   }
 
   public void Dispose()
   {
      if (_domain != null)
      {
         AppDomain.Unload(_domain);
 
         _domain = null;
      }
   }
}

Sometimes you're forced to use bad third party libraries or buggy, memoryleaking DOT.NET libraries. Executing them in an isolated app domain makes you able to kill to whole domain and free the memory after work.