Sistemas

Driver Installation for 32-bit and 64bit Platforms
July 21, 2008
Abstract
If your device will be installed on both 32-bit platforms and 64-bit platforms, you must provide a native driver package for each platform. You can, however, use a single 32-bit installer to install either driver package. This paper provides information about how use a 32-bit installation program to install either 32bitor 64bit drivers for the Windows® family of operating systems.
This information applies for the following operating systems:
Windows Server® 2008
Windows Vista®
Windows Server 2003
Windows Server 2003 64-Bit Edition
Windows XP
Windows XP 64-Bit Edition
For up-to-date information, see “Device Installation Design Guide” in the WDK documentation at:http://msdn2.microsoft.com/en-us/library/ms790231.aspx
The current version of this paper is maintained on the Web at:
http://www.microsoft.com/whdc/driver/install/32-64bit_install.mspx
References and resources discussed here are listed at the end of this paper.

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Revision History
Date | Change |
7/21/2008 | Resource links updated |
7/15/2008 | Resource links modified per Bug# 434 |
12/17/2007 | * Update to WDK documentation references |
3/25/2005 | Created |

Contents
Introduction 4
Installation Considerations for 64-bit Platforms 4
Driver Installation Packages for 32-bit and 64-bit Platforms 5
Driver Packages 5
DPInstInstallation Packages 6
Driver Package Installers 6
MSI Installation Packages with DIFxApp 7
Examples 7
Launching the Correct Version of DPInst from an Installer 7
Launching the Correct Version of DPInst from a Command Script 11
Resources 11

Introduction
To simplify installation of 64-bit drivers from a 32-bit installer, Microsoft is providing 64-bit versions of the Driver Install Frameworks...