Were to buy Cable to plug into the laptop and the A4

Just wondering were to buy cable to plug into laptop and into the A4

Look in the general discussion there is a how to thread, i think its like ecutool.com or something.

http://audirevolution.net/forum/index.php?topic=340.0

Go legit and buy the ROSS-TECH!
http://store.ross-tech.com/shop/cat/VCDS.html

But if You can’t here is another solution.
Its cheap it works.
You can’t update it or the software. Renders the cable/tool useless.
Looks like the version You can download from them is hacked to recognize their cable/tool.
Not like the lite verson that stops letting You reset the oil change service reminder.
http://www.sinosells.com/goods.php?id=7274

Thank you for your replies