-- Be sure to declare variables output in

-- the execute line of the batch...

declare @input1 varchar(10)

declare @input2 varchar(10)

declare @output1 varchar(10)

declare @output2 varchar(10)

--

execute myProc @input1, @input2, @output1 output, @output2 output

--

-- Here's the proc declaration...

--

CREATE PROC myProc

  @input1 varchar(10)

, @input2 varchar(10)

, @output1 varchar(10) output

, @output2 varchar(10) output 

AS

BEGIN

-- Procedure...

END