Write Visual Basic 6 code

I have an excel program which does exactly as I want it to do. However it is too slow. Very very slow. I need to have this redone in Visual basic 6 or any other program which ever is faster. Let take for example the program using 23 numbers, 7 set, repeat value= 3. It would produce every possible combination of 23 number in sets of 7. After it produces the first set 1,2,3,4,5,6,7 then it checks the combinations it produces to make sure that not more than 3 numbers are repeated. So the legitimate combinations would start like this: 1,2,3,4,5,6,7 1,2,3,8,9,10,11 1,2,3,12,13,14,15 1,2,3,16,17,18,19 ,1,2,3,20,21,22,23 1,2,4,8,12,16,20