You want to look for a "controller-based" modem, as opposed to a
"controllerless" or "windows" modem. The ones which have "especially made
for Windows XP" or something similar on the box are "controllerless"
modems. IMO, that label ought to be a big red one with "WARNING - CHEAP
AND NASTY" on the top.
For example, you can get a US Robotics Performance Pro V.92 PCI
controller-based faxmodem via pricewatch.com for only $49 inclusive. (It's
the modem I use which is why I looked it up in particular).
Then, if your current modem is removable, you can take it out and give it
to someone you don't like :)