Get An Update Quote Complete form below and send. List the GNSS equipment you’re interested in in the comments section. We’ll email you a link to view/purchase your TPC update. Update my TPC Update OnlyUpdate via SubscriptionUpgrade my current editionGet Download & key for my current version Your Name* (* required) Your Phone Number* Your eMail* Version* (see Tasks Manager or Help | About TPC Desktop) Edition* (see Tasks Manager or Help | About TPC Desktop) Special Instructions What workflows can we help you with?