A while ago i had the following problem. I wanted to install SCOM (Microsoft System Center Operations Manager) on a server running Windows Server 2008. I installed all the prerequisites and only needed Microsoft ASP.NET 2.0 AJAX Extensions 1.0 for the SCOM Web Console.
This is the only part that cannot be installed with the Server Manager. You can get it here.
When installing i encountered the following error:
Microsoft ASP.NET 2.0 AJAX Extensions 1.0 Setup Wizard ended prematurely because of an error. Your system has not been modified. To install this program at a later time, run the Setup Wizard again.
I restarted the server. I thought the other prerequisites needed a reboot before another installation could take place. After reboot: Same error.
After some searching i found the following:
The Microsoft .NET Framework services are needed by the installer, but are disabled by default. They need to be started by .NET installers. To solve this, change the startup type of both Microsoft .NET Framework services to manual and re-install the application.
Type Services.msc in your startmenu and search for the Microsoft.NET services. There are two and they are disabled by default like said earlier. This means you cannot just start them. You need to edit the properties and change Disabled into Manual. Do not start the service. Let the setup do this for you.
You will see it is a fast installation now that actually works!
I hope this was informative for you.
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