I wrote an application to do exactly this in a HP-UX remote desktop app I use at work. It maps the mouse wheel to the up and down keys. Works great for me let me know if you like it...
Edit added links to the source and dll.
Disclaimer!!! I am not much of a coder(as my SO account will show) and haven't looked at this particular script since I wrote it I'm sure it badly written. Constructive input would be great but just telling me I suck isn't helpful!
data.joncopas.com/download/scrolled.dll data.joncopas.com/download/Scrolled2.au3 data.joncopas.com/download/Scroller.exe