VCDS Lite + Heater Flaps

Hi

I am looking to reset the Heater Flaps on my MK1 Fabia 1.2 HTP.

I have VCDS light but this will not allow me to do this, it asks for it to be registered.

I am willing to buy the licence, the program will probably come in handy for other things.

Just before I purchase the licence, could anybody confirm, once I buy the licence this will then allow me to into the relevant  in VCDS, rather than risk losing money.

Cheers

Martin