What Does This Do?
This utility removes unnecessary icons from the desktop and other locations, and resolves an issue where the VAIO Zone™ software does not work correctly when started.

To ensure that no other program interferes with the installation, save all work and close all other programs. The Taskbar should be clear of applications before proceeding.
Download the SOAVZN-00513301-US.EXE file to a temporary or download directory (please note this directory for reference).
Go to the directory where the file was downloaded and double-click the SOAVZN-00513301-US.EXE file to begin the installation.
At the "SONY® VAIO Zone™ Configuration Utility for Microsoft® Windows® XP" screen, click "Next".
At the next screen, select your language and region.
At the "License Agreement" dialog, read the agreement, then, if you agree, click "I Agree" to continue with the installation.
NOTE: Several setup boxes may briefly appear during the installation. As the files are installed, these boxes will close automatically.
After the computer restarts, the installation of the SONY® VAIO Zone™ Software Configuration Utility is complete.

This utility removes unnecessary icons from the desktop and other locations, and resolves an issue where the VAIO Zone™ software does not work correctly when started.

http://esupport.sony.com/US/p/swu-matrix.pl?upd_id=1905