VB script and COM

I want to call certain functions of a COM component from ASP. I would like to know

How can I create a COM obj开发者_开发问答ect?. 
How can I use VARIANTS to pass to the COM object? 
Can I pass reference parameters from ASP to COM object? 
What are the limitations of passing reference objects to COM?

Where would I get more information about this?

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How can I create a COM object?.

Use the CreateObject function

Set Obj = CreateObject("COMProgID")

How can I use VARIANTS to pass to the COM object?

VBScript has only one data type called a Variant.

Can I pass reference parameters from ASP to COM object?

Yes.

What are the limitations of passing reference objects to COM?

I got lost with this one...