The VB runtime is already installed in all versions of Windows. You do not need to install anything to run a VB6 app. VB6 the IDE is not supported nor has been in 16 years. If you happen to have a copy and it happens to install then go for it but if it doesn't work then you have no support for it.
Refer to the official docs for information on VB support and links to some additional VB files that you might be looking for.