Modules & VBA :: Returning A Value From Stored Procedure

I'm having an issue getting a return value from a stored procedure that I'm calling from VBA. This is what I have at the moment:

Code:
Dim strDate As String
Dim strWOStatus As String
Dim CurrentConnection As ADODB.Connection
Dim adoCMD As ADODB.Command
Dim adoRS As ADODB.Recordset
Dim ParamReturn As ADODB.Parameter

[Code] .....

The problem I am having is this error:
Error: 424
Description: Object Required

The line of code it errors on is:

Code:
Set .Parameters("@PartsUSedMTD").Value = ParamReturn

And the value of ParamReturn is always Null after it hits the line before it.

So it seems like it's not really creating the parameter variable SQL Server needs to run