Hm, your tone is a bit puzzling. Chilisoft ASP was mentioned in the original article as a "Boom. Done." solution. By all accounts I've seen, it was a complete implementation of ASP. ASP was tiny. There were six objects: Request, Response, Server, Application, Session, and Error. Not a lot of room for undetected edge cases, and if there are, likely not harder to work around than the ones in your own porting library.

Anyway the point is, if you are selling to "enterprise" especially at that time, open-source is a scary, uncertain proposition. Enterprise buyers want vendors with phone numbers and help desks and support agreements and maintenance plans. Your sales guy just says, "Sure, unix, fine, no problem" and bundles Chilisoft into the quote.