This exception is passed by a FileSystemWatcher.Error event. This occurs when the internal buffer of a FileSystemWatcher overflows because too many events have occurred.

public class InternalBufferOverflowException : SystemException {
// Public Constructors
   public InternalBufferOverflowException( );
   public InternalBufferOverflowException(string message);
   public InternalBufferOverflowException(string message, Exception inner);
// Protected Constructors
   protected InternalBufferOverflowException(System.Runtime.Serialization.SerializationInfo info,
       System.Runtime.Serialization.StreamingContext context);
}

Hierarchy

System.Object System.Exception(System.Runtime.Serialization.ISerializable) System.SystemException InternalBufferOverflowException