My problem began after a Office XP service pack and updates. None of the standard solutions worked and Google searches returned nothing useful. I found a solution and some helpful hints for the next person. My problem was caused by the security permissions on the HKEY_CLASSES_ROOT\SOFTWARE\Microsoft\MasterAggregatorForIPP\MSDAIPP key. If that doesn't help, look at your event logs for MSInstaller errors. If that doesn't help, turn on logging (http://www.winguides.com/registry/display.php/1127/) and decode the logs in the temp directory. (Error code listing: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/msi/setup/windows_installer_error_messages.asp) Good Luck!

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Download from MS the "Windows Installer Cleanup Utility". It is free from Microsoft. http://support.microsoft.com/default.aspx?scid=kb;en-us;290301 Run it and it will show a list of programs it has helped to install (and track). Feel free to delete any item you think is the cause of your problem. By doing this it clears WI's database but does not effect the installed program in any way. WI has been known to cause problems, including getting programs mixed up...so the simplest way is to delete the offending programs database record using MICU.

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I have the same windows installer problem - downloading this package didn't work for me...!


On Monday, March 20, 2006 at 8:18 pm, Steve Boccalatte wrote:
>Download from MS the "Windows Installer Cleanup Utility". It is free from Microsoft.
>http://support.microsoft.com/default.aspx?scid=kb;en-us;290301
>Run it and it will show a list of programs it has helped to install (and track).
>Feel free to delete any item you think is the cause of your problem.
>By doing this it clears WI's database but does not effect the installed program in
>any way.
>WI has been known to cause problems, including getting programs mixed up...so the
>simplest way is to delete the offending programs database record using MICU.
>
>

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Have you established what WI is trying to install/alter?


On Sunday, May 21, 2006 at 3:46 am, D Rain wrote:
>
>I have the same windows installer problem - downloading this package didn't work
>for me...!
>
>

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I recently had the same problem with Windows Installer "preparing to install" every time I opened Word or Internet Explorer. But I have now solved this - on my P.C. at any rate. It appears that the problem was caused by Adobe Acrobat which intergrates with Word, Excel, Internet Explorer etc. when they open up. I uninstalled the Adobe Suite, re-started my P.C. and found that the problem had gone away. I then re-installed Adobe, and everything is working O.K. with no annoying pop-ups. Hope this will help some of you with a similar problem.


On Sunday, May 21, 2006 at 4:43 am, Steve Boccalatte wrote:
>Have you established what WI is trying to install/alter?
>
>

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Problem solved. I had been having the same problem with the Windows Installer appearing when clicking on IE and MS Office applications. When it last popped up (within IE) I clicked on Start, Control Panel, Performance & Maintenance, Admin Tools and took a look at my Event Viewer (log). The program calling for the launch of Windows Installer was a file (something like) MS Office 2003 Web Component. Using Add/Remove programs I removed it since I am using MS Office 2000. I then closed IE and reopened it. I have not seen the Windows Installer again. Hope this helps.


On Monday, March 20, 2006 at 2:16 pm, dancingdan wrote:
>My problem began after a Office XP service pack and updates. None of the standard
>solutions worked and Google searches returned nothing useful. I found a solution
>and some helpful hints for the next person. My problem was caused by the security
>permissions on the HKEY_CLASSES_ROOT\SOFTWARE\Microsoft\MasterAggregatorForIPP\MSDAIPP
>key. If that doesn't help, look at your event logs for MSInstaller errors. If that
>doesn't help, turn on logging (http://www.winguides.com/registry/display.php/1127/)
>and decode the logs in the temp directory. (Error code listing: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/msi/setup/windows_installer_error_messages.asp)
>Good Luck!

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This solved my problem. It had to do with my 2006 Norton AntiVirus.


On Sunday, June 11, 2006 at 11:26 am, wheelz wrote:
>Problem solved. I had been having the same problem with the Windows Installer appearing
>when clicking on IE and MS Office applications. When it last popped up (within IE)
>I clicked on Start, Control Panel, Performance & Maintenance, Admin Tools and took
>a look at my Event Viewer (log). The program calling for the launch of Windows Installer
>was a file (something like) MS Office 2003 Web Component. Using Add/Remove programs
>I removed it since I am using MS Office 2000. I then closed IE and reopened it.
> I have not seen the Windows Installer again.
>
>Hope this helps.
>
>
>

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