Integrate ASP.NET Forms Authentication with Third-Party Forums

I know a lot of free/open-source ASP.NET Forum modules on the web. However, I don't know if any of them support integration of existing Forms Authentication on a website?

e.g. You already have an existing ASP.NET Website, with User Login开发者_JAVA技巧 and Registration, and you already have existing users registered.

All you want to do is add a Forum support to it and users should be able to use their existing log-in to post messages in the Forum.

Any ideas?

Thanks all in advance!

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Try Nearforums, you can authenticate your users with asp.net membership or create a custom sso with your main site. Disclaimer: I'm a Nearforums project team member.