The Virtual Delivery Agent (VDA) is the system that will delivery applications virtually. You will want to install applications you want to delivery to end users on the VDA. For example, if you want to deliver Office 2016 to end users, install Office 2016 on the VDA.

1. Create a new Virtual Machine.
2. Run AutoSelect.exe.
3. Next to XenApp, select Start.
4. Select Virtual Delivery Agent for Windows Server OS.
5. At Environment, select Enable connections to a server machine and select Next.
6. At Core Components, tick Citrix Receiver and select Next.
7. At Delivery Controller, select Do it later and select Next.
8. At Features, select every option and select Next.
9. At Firewall, tick Automatically and select Next.
10. At Summary, select Install.
11. When prompted to restart, select Close. Windows will restart.
12. After Windows restarts, you should return to the installation. Once the installation completes, tick Restart Machine and select Finish. Windows will restart.