Ryan:
You might try changing the Program Compatibility. This will make XP emulate an earlier version of Windows (I don't know if that will help you with a DOS-based program, though).
To start the Program Compatibility Wizard, click Start, click Help and Support, click Find compatible hardware and software for Windows XP, and then, under See Also in the navigation pane, click Program Compatibility Wizard.
As an alternative to running the Program Compatibility Wizard, you can set the compatibility properties for a program manually. The settings are the same as the options in the Program Compatibility Wizard.
To set the compatibility properties for a program manually
Right-click the program icon on your desktop or the shortcut on the Start menu for the program you want to run, and then click Properties.
Click the Compatibility tab, and change the compatibility settings for your program.
Notes
The Compatibility tab is only available for programs installed on your hard drive. Although you can run the Program Compatibility Wizard on programs or setup files on a CD-ROM or floppy disk, your changes will not remain in effect after you close the program.
For more information about an option on the Compatibility tab, right-click the option and then click What's This.
