Open Public Distribution on IIS 8.0 and SQL Server 2012 R2
I have solved, the issue is at this file on this location:

C:\inetpub\wwwroot\profiles\openpublic\modules\contrib\comment_notify\comment_notify.install


the statement on line 24 

$comments_select-&gt;addExpression("MD5(CONCAT(:salt,c.mail,COALESCE(u.mail, u.init), c.uid,c.name,c.nid,c.hostname, c.cid))", 'notify_hash', array(':salt' =&gt; $salt));


should be replaced with

$comments_select-&gt;addExpression("MD5(CONCAT(CONCAT( CONCAT(:salt, c.mail) , CONCAT(COALESCE(u.mail, u.init), c.uid) ),CONCAT( CONCAT(c.name, c.nid) , CONCAT(c.hostname, c.cid) )))", 'notify_hash', array(':salt' =&gt; $salt));


because "Drupal 7 driver for SQL Server and SQL Azure" drops the SQL Server stored procedure CONCAT and creates a new one with only 2 parameters.