Server Application Unavailable

From Support

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Problem:

When trying to load an ASP.Net web application such as WebDocs - Windows Edition, browsing to the login page produces an error that says "Server Application Unavailable".

In the Event Viewer, there is an entry with the following error message:

Example: Failed to execute request because the App-Domain could not be created. Error: 0x80131902

Solution:

This is a problem with IIS servers corrupting installation of .Net runtime modules that are required to run ASP.Net web applications.

1. Open the Start Menu and choose "Run..."

2. Enter "cmd" in the prompt and hit Enter

3. Type the following commands at the command line:

cd C:\Windows\Microsoft.Net\Framework\v2.0.50727<hit Enter>

net stop w3svc<hit Enter>

aspnet_regiis.exe -ua<hit Enter>

aspnet_regiis.exe -i<hit Enter>

net start w3svc<hit Enter>

4. Refresh the web application page in your browser and the page should now successfully display.