Windows Vista - http://www.vistaarticles.com
Run Command Prompt and DOS Programs in Full Screen
http://www.vistaarticles.com/articles/201/1/Run-Command-Prompt-and-DOS-Programs-in-Full-Screen
By 
Published on 12/9/2006
 
You may find that some 16-bit DOS-based programs do not run in full-screen mode in Windows Vista.

Run Command Prompt and DOS Programs in Full Screen

You may be able to work around this problem by installing the Microsoft Windows XP version of the video drivers for your video adapter. Contact the manufacturer of your video adapter for more information about how to obtain the Windows XP version of the video drivers for your video adapter.

 For information about how to contact the manufacturer of your video adapter, click the appropriate article number in the following list to view the article in the Microsoft Knowledge Base:

65416 (http://support.microsoft.com/kb/65416/) Hardware and software vendor contact information, A-K

60781 (http://support.microsoft.com/kb/60781/) Hardware and software vendor contact information, L-P

60782 (http://support.microsoft.com/kb/60782/) Hardware and software vendor contact information, Q-Z