How to connect to another instance of Sql Server with different version in Sql Server 2008 Stored procedure
create procedure NewTestProc (
    @I int,
    @userName sysname,
    @password   sysname
)
as
begin
    declare @locallogin sysname
    set @locallogin = SUSER_NAME()

    EXEC master.dbo.sp_addlinkedsrvlogin
        @rmtsrvname=N'OTHERSERVER', @useself=N'False',
        @locallogin=@locallogin,@rmtuser=@userName,
        @rmtpassword=@password
    EXEC OTHERSERVER.DestinationDatabase.dbo.StoredProcInOtherDatabase
        @OtherParameter = @i
    EXEC master.dbo.sp_droplinkedsrvlogin
        @rmtsrvname=N'OTHERSERVER',@locallogin=@locallogin
end

EXEC master.dbo.sp_serveroption @server=N'OTHERSERVER',
     @optname=N'rpc', @optvalue=N'true'