Virtual Table Server 11.52 can be downloaded from this location along with other additional components. You can install the 32 bit or 64 bit versions, but do not install both on the same machine. This is used for both Performance Center and LoadRunner, as long as they are in version 11.52.
To install VTS:
1. Run the appropriate VTS setup.exe file [SetupVTS_x64.exe or SetupVTS_x86.exe] that is located in the Additional Components\Standalone Applications folder in the LoadRunner installation media. The VTS Setup Wizard opens, displaying the welcome page.
2. Follow the online instructions to complete the VTS installation.
Note: At the end of the installation process, a shortcut for VTS is created and added to your desktop. This shortcut gives you access to the VTS UI on the local machine. If you change the port that is used to access the VTS UI, you must manually update the URL property of the shortcut. For details on how to change the VTS UI access port, see Configuring VTS.
If you are unable to access the VTS UI, make sure that the VTS Service service is started. To start the VTS Service service, go to Control Panel > Systems & Security > Administration Tools > Services. Right-click VTS Service and select Start.
You can refer to this link on the features and differences with the older versions of VTS: http://h30499.www3.hp.com/t5/HP-LoadRunner-and-Performance/The-New-Virtual-Table-Server-VTS-in-LoadRunner-11-52/ba-p/6069435#.UcC1TJzZKyF