How to Update a MDAC 2.8 XP SP3

Written by david somerset
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How to Update a MDAC 2.8 XP SP3
Update MDAC on your Windows XP SP3 computer system. (computer image by Orlando Florin Rosu from

Microsoft Data Access Components (MDAC) is a Windows system function that allows applications access to data from various sources on the computer. It is also responsible for placing many entries into the system registry. MDAC 2.8 is the latest version of the components. If MDAC 2.8 is not working on your Windows XP computer that has Service Pack 3 (SP3) installed, you can reinstall it to update the system files and remove any MDAC errors you have been receiving.

Skill level:


  1. 1

    Open the "Start" menu. Click on "Run." Type in "C:\Windows\inf" in the "Open" box. Click on "OK."

  2. 2

    Right click on the "mdac.inf" file in the window that opens. Select the "Install" option.

  3. 3

    Choose the "Browse" button if the installer cannot find a file. Direct the installer program to the appropriate location for the files it requests. The files it might request and their locations are listed below:

    "" is located in "C:\Windows\servicepackfiles\i386."

    "handler.reg" is located in "C:\Program Files\Common Files\System\msadc."

    "MDACRdMe.htm" is locaed in "C:\Program Files\Common Files\System\Ado."

    "" is located in "C:\Program Files\Common Files\System\Ole DB."

    "mssoap1.dll" is located in "C:\Program Files\Common Files\MSSoap\Binaries."

    "mssoapr.dll" is located in "C:\Program Files\Common Files\MSSoap\Binaries."

  4. 4

    Allow the installer to complete the update. Restart Windows XP if necessary to complete the installation.

Tips and warnings

  • You may have to change the name of the file "MDACReadme.htm" to "MDACRdMe.htm" depending on what the file is named on your specific system.

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