Upvote:4
A Schengen Visa allows you in general to travel to all Schengen member states.
Assuming that you fill out one of these forms here for the visa, you should still add under point 22 "Member states of destination" Switzerland AND France. Since most likely you will be passing a passport checkpoint when traveling from Switzerland to Paris, I would not take the risk that they ignore the issue that you have not indicated beforehand your plans to travel to Paris. So you might be better indicating this beforehand to avoid questions, but they should not bar you from entering.