?User count is here for concurrent users, meaning that if you have 10 user licenses, you can enter say 25 users in GP, however simultaneously only 10 users can be logged in System Manager User Licenses.? These licenses cost depends on you GP product line owned: GP Professional, GP Business Ready or GP Standard.?If you are not current in enhancement program, then in order to get new reg key, purchase additional GP modules or add user licenses, you need first to be reenrolled in GP annual enhancement program, typically it is just the matter of paying re-enrollment fee (expect up to 20% of GP software pricelist plus enhancement for the subsequent year, starting at 16% or GP price list). In the case when you are current in Microsoft Business Solutions annual enhancement program, you automatically have reg key for all the recent versions.