DBxtra version 7.1.0 on Internet Information Server – IIS 6

There are a issues to consider with running DBxtra .NET v7.1.0 on IIS 6. First, DBxtra Report Web Service runs with the .NET Framework version 4.0. You cannot run more than one version of the framework in the same application pool in IIS6. While multiple versions of the framework can co-exist on the same server, they can’t co-exist in the same process. If you attempt to run multiple versions of the framework at the same time in the same process, the 2nd version that tries to run will fail with the following error:

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Server Application Unavailable

The web application you are attempting to access on this web server is currently unavailable. Please hit the “Refresh” button in your web browser to retry your request.

Administrator Note: An error message detailing the cause of this specific request failure can be found in the application event log of the web server. Please review this log entry to discover what caused this error to occur.

You will also receive Event ID 1062 in Event Viewer that says:

“It is not possible to run two different versions of ASP.NET in the same IIS process. Please use the IIS Administration Tool to reconfigure your server to run the application in a separate process.”

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Solution

Fortunately, the solution is easy enough.

Simply create a new application pool and move the site that you will be upgrading to that pool.