A. DISM is a new tool introduced with Windows 7 and Windows Server 2008 R2. It unifies functionality previously available in multiple other commands such as pkgmgr, PEimg and Intlcfg. DISM is included with Windows 7, Windows 2008 R2 and the Windows Automated Installation Kit (WAIK). While DISM also incorporates ImageX functionality that's used for WIM mounting and manipulation, ImageX is not being replaced by DISM and is still used for image capture and deployment.

DISM can be used for:

  • Enumerating and modifying packages and drivers
  • Enabling/disabling Windows roles and features
  • Configuring international settings
  • Upgrading a Windows image
  • Servicing versions of Windows online
  • Applying offline servicing components of Unattend.xml file

See the following for an example of viewing then mounting a WIM file with DISM. The bold text inidcates commands that I entered.

                              dism /Get-WimInfo /wimfile:d:\temp\install.wim                              Deployment Image Servicing and Management tool                              Version: 6.1.7600.16385                              Details for image : d:\temp\install.wim                              Index : 1                              Name : Windows 7 HOMEBASIC                              Description : Windows 7 HOMEBASIC                              Size : 11,500,789,302 bytes                              Index : 2                              Name : Windows 7 HOMEPREMIUM                              Description : Windows 7 HOMEPREMIUM                              Size : 12,012,660,212 bytes                              Index : 3                              Name : Windows 7 PROFESSIONAL                              Description : Windows 7 PROFESSIONAL                              Size : 11,910,752,928 bytes                              Index : 4                              Name : Windows 7 ULTIMATE                              Description : Windows 7 ULTIMATE                              Size : 12,070,211,908 bytes                              The operation completed successfully.                              dism /mount-wim /wimfile:d:\temp\install.wim                              /index:4 /mountdir:d:\temp\mount                              Deployment Image Servicing and Management tool                              Version: 6.1.7600.16385                              Mounting image                              \[==========

27.0% \] dism /unmount-wim /discard /mountdir:d:\temp\mount Deployment Image Servicing and Management tool Version: 6.1.7600.16385 Image File : d:\temp\install.wim Image Index : 4 Unmounting image \[

= 11.0% \]

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