I verified the registry config. There were one missing component; ArchiveUrl. I added the string, but didn't have any impact...
I'm open for any suggestions.
Med vennlig hilsen / Best regards,
Senior System Engineer
NetNordic Norway AS
Conrad Mohrsvei 23B
Følg NetNordic på LinkedIn
I sorted out the issue. For some reason the property file used by the installer was missing.
C:\Program Files\Zero G Registry\.com.zerog.registry.xml
I copied the file from an other server. Problem solved. The installer now detects the old installation and prompts to upgrade.