I'm not sure if you can do this in VB, but in C# you can define an array without a first parameter:

private Object[][2] oParameters=null;

then later you can fill the array as follows

oParameters = new Object[3][2] {  {new MyObject1(), new MyObject2()},
                                 {new MyObject3(), new MyObject4()},
                                 {new MyObject5(), new MyObject6()}
                              };