win7下 不支持DOS全屏 This system does not support fullscreen mode

当你运行一个C程序，出现This system does not support fullscreen mode.Choose 'Close' to terminate the application.

是由于win7下已经不支持16位DOS全屏运行了

其中之一的解决方法：

一。下载 DOSBox 0.73

http://sourceforge.net/projects/dosbox/files/dosbox/0.73/DOSBox0.73-win32-installer.exe/download

2>after download and intalled it,you go to start>program>DOSBox-0.73>configuration>Edit configuration,now you'll see the notepad>then goto lastest below of this file>until u see [autoexec],under this line type: 

mount c c:\ ,then Save it.

3>now goto DOSBox-0.73 in desktop icon or somewhere. then 'll see 

z:\>mount c c:\
Mounting c:\ is NOT recommended .Please mount a(sub) directory next time.
Drive c is mounted as local directory c:\
then type in command as below then enter( step by step) 
z:\>c:
c:\>cd tc
c:\TC>cd bin
c:\tc\bin>tc.exe

it's actually successful working...
I'm using Aspire 5738 with windows 7.