Backup the TaxComp Database before doing the service pack. Watch Tutorial
When your current Superior TaxComp version is less then 2018.17. Pls upgrade the SP 2018.17 before proceed the below Service pack.
Download below SPC Server, Superior TaxComp together when run service pack.

How to run the Service Pack How to backup your TaxComp Database How to backup your TaxComp Attachment Files How to restore your TaxComp Database How to check your Superior TaxComp System Version How to check your Superior TaxComp Dongle Key Number How to install Superior TaxComp