I have a website that a develop using umbraco CMS(www.testing.com).

We are want to install YAF forum as subdirectory (forum.testing.com) .

The yaf forum not a sub-directory of the Umbraco CMS. We want to do a Single Sing-On(SSO). Went user click on forum button user will in the forum homepage.

http://forum.yetanotherforum.net/yaf_postst10180_Integrating-YAF-with-ASP--Net-membership--My-Solution.aspx#post41599  but still not manage to integrate.

In my web config:-

I already I already put yafMembership,yafRoleProvider,YafProfile and also the machine key.