Error trying to publish a mosaic

[PaulHuppé]

Hi,

We are trying to publish a mosaic for the first time. My user created a mosaic and asked me if I could try to publish it.  In the ArcGIS Server Manager, I tried to publish the mosaic as an Image service, but I am getting the error you can see in the attached image. I am license for Image Server and the Image Server is up and running, so I do not understand why I am getting this error.

Paul

[PeterBecker]

The serving of a Mosaic Dataset requires a Licence for the Image Extension to ArcGIS Server.
It seems you have registered the Image Server (9.3 technology that can be installed and run at V10, but uses ISDef files), but not ImageExtension (core to ArcGIS Server that does not require a separate install, but does require licensing).