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Thanks for that. &nbsp;I worked out that the installation of SQL server 7 on the server was kicking off an attaempt to reinstall or repair Outlook. &nbsp;I set the service to start up manually, deleted the registry key, rebooted the PC and was able to uninstall Outlook no problem.<br />
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Incidentally, I couldn't install the MSI cleanup utility until I'd dealt with the SQL Services. &nbsp;The installer for the installer cleanup utility also, perhaps a little unwisely also uses the Windows Installer and so wouldn't install, reporting the 1500 error as before.
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Thanks for that.  I worked out that the installation of SQL server 7 on the server was kicking off an attaempt to reinstall or repair Outlook.  I set the service to start up manually, deleted the registry key, rebooted the PC and was able to uninstall Outlook no problem.

Incidentally, I couldn't install the MSI cleanup utility until I'd dealt with the SQL Services.  The installer for the installer cleanup utility also, perhaps a little unwisely also uses the Windows Installer and so wouldn't install, reporting the 1500 error as before.

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I have an NT4 Server with a damaged installation of Outlook 2000. &nbsp;WHenever I try and uninstall Outlook or force another installation over the top, I get an error as follows:<br />
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Product: Microsoft Outlook 2000 SR-1 -- Error 1500. Another installation is in progress. You must complete that installation before continuing this one. <br />
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I've had to manually uninstall Net Shield as the windows installer wouldn't uninstall the program reporting the same error.<br />
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Now it's preventing me from reinstalling Outlook and, more importantly, installing Norton Anti Virus 7.5
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I have an NT4 Server with a damaged installation of Outlook 2000.  WHenever I try and uninstall Outlook or force another installation over the top, I get an error as follows:

Product: Microsoft Outlook 2000 SR-1 -- Error 1500. Another installation is in progress. You must complete that installation before continuing this one. 

I've had to manually uninstall Net Shield as the windows installer wouldn't uninstall the program reporting the same error.

Now it's preventing me from reinstalling Outlook and, more importantly, installing Norton Anti Virus 7.5

Manual Uninstall of Outlook 2000 SR-1

This topic area includes legacy versions of Windows prior to Windows 2000: Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions including Windows Mobile.