Uhm... What PCI modem will not work with Win95, Win98, WinME, Win2K or WinXP?
I have the SupraMax here, and it's worked for everything (except for Linux and BeOS, and probably any other non-Windows OS.. stupid WIN-modem). There is no reason to fear having a PCI modem not work in Windows. They were practically designed to work with Windows.
-RSI