How to reosolve the "class not registered" error?
When we try to access the system administration via configuration wizard we are getting an error message saying that "class not registered"(system:800xA5.1 revA FP1)
Snapshot is attached for your reference
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Could not find any snapshot, but the problem is likely due to some missing or damaged component in the installation.
Before reinstalling you could test the "Repair" option of ABB 800xA Base program in Control Panel -> Programs and Features. You will be asked for media (DVD, etc) unless the original installation was done from a network based, etc depot still accessible.
The missing component may be external; next thing to try would be to repair the ABB Common Third Party software kit as well.
After this things get more complicated...