Stored procedure

CREATE PROCEDURE usp_test 
	@Number	INT
AS
SELECT @Number + 3
GO

is being called from VFP the following way

loRS = oData.oConn.Execute("usp_Test 3")
?loRS.Fields(0).Value	&&returns 6

Works fine.
oData.oConn is an ADODB.Connection

Stored procedure

CREATE PROCEDURE usp_dsp_TooLate2AddInvoice
	@Drv_CD	CHAR(8)
AS
DECLARE @TooLate		BIT
DECLARE @RecordsCheckedOut	INT
DECLARE @LatestCheckOut		DATETIME
SELECT @RecordsCheckedOut = COUNT(*)
	FROM dspCOutH
	WHERE Driver_CD = @Drv_CD AND Out_Dt IS NOT NULL
IF @RecordsCheckedOut = 0
	SET @TooLate = 0
ELSE
	BEGIN
	SELECT @LatestCheckOut = MAX(Out_DT)
		FROM dspCOutH
		WHERE Driver_CD = @Drv_CD
	IF DATEADD(ss, 300, @LatestCheckOut) > GETDATE()
		SET @TooLate = 0
	ELSE
		SET @TooLate = 1
	END
SELECT @TooLate
GO

is being called from VFP the same way

loRS = oData.oConn.Execute("usp_dsp_TooLate2AddInvoice '1001'")
?loRS.Fields(0).Value    &error

gives error "Member FIELDS does not evaluate to an object".
What is wrong with second function?

Second question. What would be the syntax to pass variable instead of literal?

lcDriver = '1001'
loRS = oData.Call_SP("usp_dsp_TooLate2AddInvoice lcDriver")