Sending parameters to a webService

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VB

webservice

Hi,

I need send to a webservice this information:
user as string,
password as string,
token as string,
parameters as object (array).

My code is:
-********************

Dim Param As Array = Array.CreateInstance(GetType(String), 5)
Dim ws As New MySite.Model_Webservice_Soap_WB4BService

Param(0) = "2000-12-12"
Param(1) = "2100-01-31" 
Param(2) = "APROVADO"

xmlResult = ws.invoices("John", "John2012","48102a1e96c36cbb5f416e2586f0bf15",Param)

My.Computer.FileSystem.WriteAllText("C:\XPERT\Invoices",xmlResult(0).ToString,False)

-*********************

but the site receive Param as blank.

Can Anyone help me on how to send the array correctly?

The provider sent me:

<message name="pedidosIn"><part name="params" type="soap-enc:Array"/></message>

And told me I need send the information in a "soap-enc:array" format.

I can't find how to send it from a vb.net program.



Thanks in advance.