>I need to build a setup which will among other things install the Soap Toolkit 3.0. How would I go about this?

What tool are you planning to use to create setup?
You can download
- SOAP Toolkit 3.0 Redistributable (merge modules) at http://www.microsoft.com/downloads/details.aspx?FamilyID=ba611554-5943-444c-b53c-c0a450b7013c&DisplayLang=en

- SOAP Toolkit 3.0 at http://www.microsoft.com/downloads/details.aspx?FamilyId=C943C0DD-CEEC-4088-9753-86F052EC8450&displaylang=en