PSQL Database Engine (Install this first):
http://www.c21accountingsoftware.com/Special/PSQL12Workgroup.exe
You do not need to register with Pervasive at the end of the installation of this component. Your new computer will have a 30-day temporary license key installed with PSQL 12. To avoid complications, activate your permanent PSQL license immediately.
Base C21 Program (Install this second):
Log into this page with your active C21 Serial Number:
http://c21accountingsoftware.com/software-full.php
Payroll Tax Tables (If you process payroll with C21, Install this third):
Log into this page with your active C21 Serial Number:
http://c21accountingsoftware.com/payroll-tax-updates.php