On this page, you will find more information about the most common causes and most relevant solutions for the ExtendSim error 'Codebase failed to register'. Do you need help straight away? Visit our support page.
The ExtendSim documentation indicates that error code 'Codebase failed to register' is caused by the following problem: "Windows operating system or your security system is blocking the ExtendSim installer from registering the DLLs.".
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