You can install Tally.Server 9 from the Downloads page on the Tally website. You can also install Tally.Server 9 using the CD installer.
A new customer of Tally.ERP 9 with Tally.Server 9 will need two installers - Tally.ERP 9 Series A Release 5.X installer and Tally.Server 9 Release 5.X installer .
Click the following links for more information:
● Activating Tally.Server 9 license
● Activating Tally.Server 9 License as a Multi-Site Account
● Reactivating Tally.Server 9 License
● Updating Tally.Server 9 License