Service packs, updates, and security patches may require the Office XP CD-ROM

When you install a Microsoft Office XP service pack, update, or security patch on your computer, you may be prompted to insert your Office XP CD-ROM. This article discusses why Office XP service packs, updates, and security patches may require your Office XP CD-ROM.

If you installed Office XP by using a CD-ROM, you may be prompted to insert your original Office XP CD-ROM when you install an Office XP service pack, update, or security patch . You receive an error message that is similar to one of the following: -or- Office XP service packs, updates, and security patches may require access to your original Office XP CD-ROM for the following reasons:

• You are running Microsoft Windows Installer 1.1 or earlier and one of the files that is being updated is an unversioned file.
  
  Note This condition does not apply to Office XP optimized client patches and full-file patches. Office XP optimized client patches and full-file patches require Windows Installer 2.0.
• You are running Microsoft Windows Installer 2.0 or later, but one of the following conditions is true:
  • You have configured an Office feature to run from the source media when required, and the service pack, update, or security patch applies to that feature.
    
    Note When you apply a patch, if a feature is marked as run from source, Windows Installer copies the file locally to patch it and then the feature is transitioned from the run-from-source state to the local state.
  • The service pack, update, or security patch applies to a component that is broken (either a missing or corrupted file).
  • One of the files that is being updated by the service pack, update, or security patch is an unversioned file; the file not listed in the MsiFileHash table.
    
    Note The MsiFileHash table is used to make sure that files are not copied unnecessarily.
  • One of the components that is being updated depends on an unversioned file that has been modified since the original installation.
    
    For example, Outllib.dll is a frequently updated file that has a dependency on Outlook.txt. The Outlook.txt file is an unversioned file.
  • Your computer's language locale is set to something other than English and one of the Office XP files that you are updating is a multilanguage file.
    
    For example, the Msreftl.dll file is a multilanguage file that was shipped in all language versions of Office.
  • You are a network administrator and you install the service pack, update, or security patch by using the REINSTALLMODE=amus command.
    
    Note The REINSTALLMODE property is a string that contains letters that specify the type of reinstall to perform. The a option forces all files to be reinstalled, regardless of the checksum or the file version. This can lead to the revision of earlier files; this almost always requires the source media. To avoid this issue, network administrators can choose to use the REINSTALLMODE=amus command.

Additional Notes

• Windows Installer preserves the integrity of your Office XP installation by "melding" the service pack, update, or security patch with your current installation of Office XP. Because of the design of this feature, Office XP seamlessly uses the service pack, update, or security patch files when you add, remove, or reinstall Office XP components later.
• To keep the size of the service packs, updates, and security patches as small as possible, if these packages determine that a file to be updated is a later version than the original version of the file included with Office XP, the service pack, update, or security patch recopies the original file from your Office XP CD-ROM and then updates the file. As a result, your files are correctly updated, regardless of the version they were before you installed the service pack, update, or security patch.
• If you are in an environment where the Office XP CD-ROM or source is not readily available (for example, an office where all users installed Office XP by using a single CD-ROM and a multi-user license), you may have to contact your system administrator to obtain the CD-ROM or access to the source.
• If you purchased a computer where Office XP was preinstalled and you did not receive an Office XP CD-ROM with the computer, contact the company that sold you the computer (the original equipment manufacturer [OEM]), and then request a CD-ROM.

Office XP service packs, updates, and security patches may not require access to your original Office XP CD-ROM for the following reasons:

• If the source is remote, you can use full-file patches to update the client without requiring access to the source. For more information about the use of full-file patches, visit the following Microsoft Web site:
  http://office.microsoft.com/en-us/orkXP/HA011525711033.aspx

  (http://office.microsoft.com/en-us/orkXP/HA011525711033.aspx)
• You installed Office XP from a flat copy that is stored on your computer's hard disk and you have access to the flat copy computer's hard disk when you install the service pack, update, or security patch.

Note If you installed Office XP from an administrative installation of Office XP that is stored on a network server, contact your system administrator for the appropriate method to use to update your system.

For more information about Windows Installer, visit the following Microsoft Web site: