How do I use PDF Presets in IDS 3?

Can anybody please direct me on how to use/call my pdf presets in InDesign Server 3 using VBScript? I know how to use it in InDesign Desktop but not on IDS.
In desktop, it is:
myDoc.Export 1952403524, "filename.pdf", false, myIndesign.PDFExportPresets.Item("PDFforWEB")
What will the code be in Indesign Server 3?

Thanks