As it is not possible to override a static class in c#, if i want to override a method I generally define a delegate matching the signature of the static method, then modify the method along the lines of:

public static void foo(int bar)
{
  if (delegatename!=null)
  {
   delegatename.Invoke(bar);
  }
  else
  {
   //execute previous code as normal
  }
}

I feel a twinge of guilt, knowing this is a bit messy.

Can anyone suggest a neater solution to this problem (other than rewriting the original structure)