Hi!
I modified the code of one SMF file in order to get the visitors that register in the forum registered in the WB database. Therefore they can login in the WB site and add comments to news or whatever.
I use WB 2.6.7 and SMF 1.1.4 and they are in the same database with different prefix in order to access easily from SMF code to WB tables. I only modified Register.php, in the Source folder of SMF, including this simple code after line 304:
/*************************************/
// User to WB users database
$md5_password = md5($regOptions['password']);
db_query("
INSERT INTO wb_users (group_id,active,username,password,display_name,email)
VALUES ('3', '1','".($regOptions['username'])."', '".$md5_password."','".($regOptions['username']). "','".($regOptions['email'])."')");
/**************************************/
Notice that my WB prefix is "wb_" and group 3 is a group I defined in WB admin interface.
You can test this in my website (it's in Spanish, but it isn't difficult to try).
- Go to forum and click "regístrate" (rigth top corner)
- Register, including name, email, password, repeat password, and agree. Now you are registered in both SMF and WB, but only logged in SMF.
- Go to WB login and insert your name and password. Now you are logged in WB system.
- Go to my news section and add a comment ("Añadir comentario") in a post (this for example) to see that you are really logged (your name appears in the comment)
There are some drawbacks:
- Login is independient from WB to SMF, you have to log in both system.
- In the registering proccess the only validations (user repeated, valid email, password length,...) are these of the SMF, not the WB ones.
- More?
I don't know have to solve these issues, cause loggin simultaneuosly in both is more difficult than register.

That's all. What do you think? Could it be useful?