Error -2147221231: ClassFactory cannot supply requested class

I get this error message when trying to register. I have disabled almost everything within Comodo Firewall, and its still not letting me get anywhere with it.

Are you running any security software that prevents writes to the registry?

Ewen :slight_smile:


Also checkout our knowledgebase article:


Got it. I installed the latest script version that windows had after noticing that I didn’t have the msxml3a dll file. And I also registered the msxml3.dll in the registry. Also I didn’t have any software that prevents writing to the registry.