I ask my snap on dealer about pc link and he told me you have to upgrade to 5.1 to be able to get pc link may be he is wrong as far as updates but 4.1 was released in fist 1/4 of 2004

4.2 was released in second 1/4 of 2004

4.4 was realeased in forth 1/4 of... Login to read more.