Some of the components of the DVI solution are DCOM based, and needs special permissions to be found and executed by the DVI Server application running in the Internet Information Services.
You need to change the permissions in the computer to allow the relevant application pool to execute the DVI Server components. The installation Wizard is doing this automatically during installation, but you need to change it manually if you change the application pool as described in the article Custom IIS Application pool.
You must be a machine System Administrator to perform these tasks
Step-by-step guide
Find and open the administrative tool DCOMCNFG.EXE
Double-Click "Computers" in the middle "Name" column to reveal the "My Computer" icon, right-click it and click "Properties"
(click picture to enlarge)- Click the "COM Security" tab
- IIS APPPOOL\CustomDVIPool
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