what is the best way to crack s/w that acccess the web to check s/n?

hello all

i have been trying a few ways to crack some s/w that uses the web to check s/n if i try to bypass this then i can't get any updates..it will let you get 4 free updates before it asks to pay...it checks the s/n (which is diff on each p.c you install it on) via the web? can this be cracked or no?

there is a section to enter a s/n that they send to you...it seems like the download updated button is disable

[EDIT JMI: Chad there is an Edit Button on the Posts. There is NO NEED to start a new post to ADD to your last one.]

thanks