vbscript runtime error:invalid procedure call or argument

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C#

ASP

.NET

I have an asp page, from which I have to call a function wich is written c# (managed code)which is registered by regasm. It is working fine. Now my requirement is passing an ADODB.Recordset function (C#.net)from asp page. like:

Set class1=CreateObject("namespace1.class1")
Result=class1.function1(str,rsSet).

where rsSet is the ADODB.Recordset and str is a simple string.

And the signature of the C# function is
Public object[] function1(string value,ADODB.Recordset rsSet)

But at the time of calling the function from asp it gives the error:
vbscript runtime error:invalid procedure call or argument

Is there any other way to pass he complex objects from COM component like ASP to managed code.

Any clue how to fix it.

Thanks.