Plz help: Problem with stored proc

I have a stored proc in MS SQL Server 2000:

CREATE PROCEDURE spBCountSub
@Cnt int output ,
@SubC char(2)
as
SELECT @Cnt=COUNT(tblB4.Code)
FROM tblB4 INNER JOIN
tblB1 ON tblB4.Code = tblB1.Code
WHERE tblB1.SubC = @SubC
GO

but when i want to execute this by a command object, i get the following error: -2147217900
formal parameter '@SubC' was defined as OUTPUT but the actual parameter not declared OUTPUT

but i defined tha param as:

Set pSubC = cmd.CreateParameter("SubC", adChar, adParamInput, 2) cmd.Parameters.Append pSubC

plz help.

When using output parameters you have to start (in your recordset declaration) with the output parameter
Below an example!
Say that you work with an objComm


With ObjComm
.CommandText = "yourStoredProcName"
.CommandType = adCmdStoredProc
Set .ActiveConnection = objConn
.parameters.Append .CreateParameter("Cnt", adInteger, adParamOutput)
.parameters.Append .CreateParameter("SubC", adChar, adParamInput, 2)
.Execute Options:=adExecuteNoRecords
End With