IMPORTANT: This file is only for use with the models identified. Not all models are sold in all countries.

This information is for the following models:

  • MSAC-EX1

About this download

Benefits and improvements

This utility installs the originally shipped version of the Sony Memory Stick Duo ExpressCard Adaptor driver for Microsoft Windows operating system.

System Requirements

Operating Systems

  • Windows Vista®
  • Windows® XP
  • Windows® XP MCE

File Info

File Name


File Version

  • n/a

File Size

  • 3.75 MB

Release Date

  • 08-14-2007

Before You Start

Important Notes

  • Before beginning the procedure below, ensure that the MSAC-EX1 adapter is disconnected from the computer.
  • During the installation of this update, be sure that you are logged in as the Administrator or as a user with Administrative rights.
  • 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.
  • It is highly recommended to print out these instructions as a reference during the installation process.

Download & Install

Download and Installation Instructions

  1. Download the MSAC-EX1_DRIVER_INSTALLER.EXE file to a temporary or download directory (please note this directory for reference).
  2. Go to the directory where the file was downloaded and double-click the MSAC-EX1_DRIVER_INSTALLER.EXE file to begin the installation.
  3. At the "Welcome to the InstallShield Wizard for Memory Stick USB Reader Writer driver (MSAC-EX1)" window, click Next.
  4. At the "InstallShield Wizard Complete" window, click Finish.

The installation of the Sony® Memory Stick Duo™ ExpressCard™ Adaptor Driver for Microsoft® Windows® is complete.