Need language for Windows Installer "IPv6 select" dialog

I recently added a dialog to the Windows installer to allow users to select IPv4 or IPv6. It reads:

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IP Version Selection
Would you like to use Internet Protocol version 6 (IPv6) on this server? If you don't know, select "No".
o Yes, use IPv6
o No, use IPv4
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Those are radio button options. The default is "No", unless the MSI was invoked with USE_IPV6=true.

I feel like this text should make it more clear that:
(a) this is either IPv4 OR IPv6, you can't have both (ie, selecting "yes" doesn't add IPv6 functionality, it replaces IPv4 functionality with IPv6).
(b) you can't change this selection without un-installing and re-installing Server.