I'd say ditch IIS and install Apache instead.

I'm with Ricin. If you're implementing a helpdesk system on a windows machine, I'd stick with windows technology - like an ASP/Access/SQL helpdesk system ala Liberum.

But if you want to use a PHP/MySQL system - I'd find a linux box. I'd imagine linux technologies on a windows box would be dogy no matter how well configured. But that's just MHO.

- trs