• on my dev machine, where i have the last 4 versions of SQL, i was able to create a linked server from 2008R2 to 2012, and successfully query a known table, so at least you can be sure it's possible.

    i googled your error here, but i'm not sure which might apply.

    /****** Object: LinkedServer [DEV223\SQL2012] Script Date: 03/21/2013 15:59:08 ******/

    EXEC master.dbo.sp_addlinkedserver @server = N'DEV223\SQL2012', @srvproduct=N'SQL Server'

    /* For security reasons the linked server remote logins password is changed with ######## */

    EXEC master.dbo.sp_addlinkedsrvlogin @rmtsrvname=N'DEV223\SQL2012',@useself=N'True',@locallogin=NULL,@rmtuser=NULL,@rmtpassword=NULL

    select * from [DEV223\SQL2012].master.sys.tables

    Lowell


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