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Running MSI files after SP 2 on WinXP

By thorpe322 ·
After installing SP 2 on Windows XP Pro my fellow support guys and myself have found that .msi files give the following error when we try to run them:
"The Windows Installer Service could not be accessed. This can occur if you are running Windows in safe mode, or if the Windows Installer is not correctly installed. Contact your support personnel for assistance."

We're not running in safe mode, nor is the Windows Installer service disabled. Ive found very little help on the MS site. Is ANYONE else having this problem? We have found the only solution is to uninstall SP2. It then begins to work again correctly. Thanks for any ideas!

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by Ann777 In reply to Running MSI files after S ...
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by thorpe322 In reply to

Although this was informative, it doesn't solve the problem. Thanks though! There must be a fix.

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by sgt_shultz In reply to Running MSI files after S ...

think this is not answer you seek but i have fixed this error by reverting to restore point on xp system. did not restore previous to sp2. restored previous to some other updates. then reapplied them w/o installer error. fwiw. you could try also uninstall and reinstall windows installer from

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by thorpe322 In reply to

The only restore I have would put me pre-SP2. This is before any further updates have been done. Microsoft does not offer Windows Installer 3.0 as a separate download.

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