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Error “The Windows Installer Service could not be accessed” in Windows Vista

March 20th, 2008 • Related • Filed Under

When you try to install a program (which uses Windows Installer) in a Windows Vista computer, you may receive the following error message:

The Windows Installer Service could not be accessed. This can occur if the Windows Installer is not correctly installed. Contact your support personnel for assistance.

This error may occur even though Windows is already in Normal mode.

SOLUTION

Start the Windows Installer service

  1. Click Start, type Services.msc and press {ENTER}
  2. Double-click Windows Installer
  3. Set the Startup type of Windows Installer to Manual
  4. Click OK.

Windows Installer service - Entry is missing?

If Windows Installer service is not listed in the Services applet, follow these steps:

  1. Download msiserver.zip and save it to Desktop.
  2. Unzip the file and extract msiserver.reg to the Desktop.
  3. Right-click msiserver.reg and choose Merge.
  4. Click Yes when asked for confirmation.
  5. Restart Windows.

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There Is 1 Response So Far. »

  1. Comment by Masoud on 28 April 2008:

    Wow, Wow, Wow,

    Many thanks indeed

    I have been seeking for a long time to solve this complicated problem, eventually it solved.

    My complicated issue has been solved by your efforts.

    Thank you too much

    Elsharif

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