I have a HP Pavilion 6640C that I partitioned to run msdos 6.22/Win98 and Winxp. Everything works great with the exception of dos. I cannot seem to find any dos sound drivers for my soundcard/modem card. In windows 98 I can boot to dos and it loads a driver and it works good but I cannot get it to work with true dos. Any ideas?

About your sound card: There's no such thing as sound card drivers for DOS. DOS programs don't use drivers for sound. DOS applications talk directly to the sound card hardware without using the services of a driver. Some sound cards, especially plug and play (and PCI sound cards in particular!), require a special configuration program to be launched to do things like select an emulation type, set resources, etc. to make the card accessible to DOS programs. These programs aren't drivers, though. Some sound cards (like most software-based modems) simply don't work in real mode. About your modem: You don't need a modem driver for DOS either. Try ECHOing a few AT commands to it. If your modem doesn't work in DOS, it may very likely be a WinModem or some other type of software-based virtual device (Host Signal Processing, Rockwell Protocol Interface, etc.)

By the way, I'm referring to real mode DOS, not a virtual machine or virtual real mode session under a 32-bit Windows environment. Many sound cards and modems that don't work in real mode can work in these situations.