Identifying the root cause can save you time. You are likely seeing this error because:
If your own application throws this error, you are likely reading: Error Reading The Language Settings From The Registry
Once you have resolved the take these steps to ensure it never returns: Identifying the root cause can save you time
The message "Error Reading The Language Settings From The Registry" and I can't find the rulebook."
The result? The "Error reading the language settings from the registry" dialog box. This is essentially the application crying out, "I don't know what language I’m supposed to be speaking, and I can't find the rulebook."