Keygen for my VB6 program [help]

Yes i need to know how to make a keygen for my vb6 program...
my vb has four text boxes and to check if it is correct i have it add all of the boxes together and if they equal 6666 then it goes to form2...
I know i could just use a vb program but i want to learn C++ lol
please help me.

 

Please speak English, and I might understand you.

If you're looking at Windows Forms programs in C++, you can't just start coding them like that. Heck, the most simple of forms takes at least 100 lines of code.

 

ok fine...
I made a vb program that asks you for a serial code/reg code...
It has 4 text boxes...
when you click Next in my program it will check...

Code:

if(box1.txt+box2.txt+box3.txt+box4.txt=6666)then
form1.hide()
form2.show()
endif
if(box1.txt+box2.txt+box3.txt+box4.txt!=6666)then
msgbox("Invalid Reg code.")
endif

now i want to make a C++ file that will make a reg code for me...
like

Code:

firstv=6666;
secondv=firstv-rand();
thirdv=secondv-rand();
forthv=thirdv-rand();
fifthv=forthv-rand();

...
so i am left with 0 and when you add the 4 numbers it gives you you get the 6666 so my vb6 program will accept it.
English enough for you???